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Rin Tohsaka
Honkai: Star Rail · Character

Rin Tohsaka

Quantum Erudition damage dealer with an enhanced Skill that spends Gem Energy and can convert excess Skill Points into more Energy. Her Ultimate attacks one enemy and others, recovers a Skill Point, and increases damage taken by all enemies. A separate Joint Follow-Up Attack is conditional on Archer.

Released Jul 24, 2026

Rin’s Talent grants Gem Energy when an ally consumes or recovers Skill Points, and increases CRIT DMG for the ally involved for 2 turns. At 15 Gem Energy or 7 or more current Skill Points, her Skill becomes Second Magic Experiment. Her Ultimate restores a Skill Point and raises all enemies’ damage taken for 3 turns. Her Archer-linked Joint Follow-Up Attack has its own trigger requirements and is not part of her standalone Skill sequence.

ElementQuantumPathEruditionRarity5
Rin Tohsaka GUIDE

Understand Rin Tohsaka

Useful when…

  • Consider Second Magic Experiment when Rin has at least 15 Gem Energy or the team has at least 7 Skill Points; it hits all enemies, then uses Energy for repeated random-target attacks.
  • Use her Ultimate for its attack against one designated enemy and other enemies, Skill Point recovery, and increase to damage taken by all enemies.
  • With Archer, the Joint Follow-Up Attack can deal damage to all enemies and recover Skill Points when its trigger condition is met.

Gem Energy and Second Magic Experiment

Rin enters combat with 20 Gem Energy. When an ally consumes or recovers Skill Points, that ally gains 35% CRIT DMG for 2 turns, and Rin gains 1 Gem Energy per Skill Point consumed or recovered. At 15 or more Gem Energy, or when current Skill Points are 7 or more, her Skill becomes Second Magic Experiment. It first deals Quantum damage to all enemies, then spends 3 Gem Energy per additional hit against a random living enemy. This can repeat for up to 33 cycles and stops if she has insufficient Energy or no living enemy remains. If current Skill Points exceed 2, the Skill consumes points down to 2 and grants 2 Gem Energy for each point consumed.

Attacks and team effects

Bajiquan is a single-target Quantum Basic ATK, and Jeweled Sword Zelretch is a single-target Quantum Skill. An Gal Ta Ki Gal Šè deals Quantum damage to one designated enemy and other enemies, recovers 1 Skill Point, and increases damage taken by all enemies by 10% for 3 turns. With Archer, Freeform Tohsaka Style can trigger after Archer attacks with Caladbolg II: Fake Spiral Sword if current Skill Points are 3 or fewer, or that Skill has been actively used 5 times during Circuit Connection. If the follow-up has not triggered during Rin’s turn, Rin and Archer attack all enemies and recover 4 Skill Points. It can trigger once before Rin’s turn ends; the trigger count resets when her turn ends.

Practical upgrade considerations

As a practical suggestion based on the listed effects, consider investing in the Ultimate and enhanced Skill trace for their multi-target damage effects, and the Talent for its Gem Energy and CRIT DMG mechanics. The Basic ATK may be a lower priority if used less often. Her bonus traces provide CRIT DMG, ATK, and Quantum DMG boosts, with some nodes requiring other traces. Promotion raises her level cap. Skill, Ultimate, and Talent are separate trace tracks; supplied examples show selected upgrade costs, including the final listed step for each of those tracks. These effects do not establish a universal optimal damage ranking.

Conditions and tradeoffs

Second Magic Experiment’s additional hits target random living enemies, so they may not focus the selected target. When the Skill is used above 2 Skill Points, it spends the excess down to 2, which can affect the team’s immediate access to Skill Points. The CRIT DMG increase applies to the ally whose Skill Point consumption or recovery triggers it, not automatically to every ally. The Archer-linked follow-up is conditional and can trigger once per Rin turn. Archer is Quantum and follows The Hunt, Sparkle is Quantum and follows Harmony, and Castorice is Quantum and follows Remembrance; those differences alone do not establish them as substitutes for Rin.

Limitations and tradeoffs

  • Second Magic Experiment can convert Skill Points above 2 into Gem Energy, but leaves the team at 2 Skill Points when used above that amount.
  • The Ultimate recovers a Skill Point and increases all enemies’ damage taken, while its preference depends on the situation.
  • The Joint Follow-Up Attack requires Archer and a qualifying Skill Point count or active-use condition.

Common mistakes to avoid

  • Using Second Magic Experiment without accounting for its Skill Point conversion down to 2.
  • Assuming its additional hits focus the selected enemy; they target random living enemies.
  • Treating Skill Point-triggered CRIT DMG as a buff for the whole team.
  • Counting the Archer-linked Joint Follow-Up Attack as unconditional or more than once per Rin turn.

Effects and reference details

Bajiquan · Basic ATK

Deals Quantum DMG equal to 50% of Rin Tohsaka's ATK to one designated enemy.

Ability descriptions by source level. Purchased caps and bonus levels are separate.

Source levelEffect
1Deals Quantum DMG equal to 50% of Rin Tohsaka's ATK to one designated enemy.
2Deals Quantum DMG equal to 60% of Rin Tohsaka's ATK to one designated enemy.
3Deals Quantum DMG equal to 70% of Rin Tohsaka's ATK to one designated enemy.
4Deals Quantum DMG equal to 80% of Rin Tohsaka's ATK to one designated enemy.
5Deals Quantum DMG equal to 90% of Rin Tohsaka's ATK to one designated enemy.
6Deals Quantum DMG equal to 100% of Rin Tohsaka's ATK to one designated enemy.
7Deals Quantum DMG equal to 110% of Rin Tohsaka's ATK to one designated enemy.
8Deals Quantum DMG equal to 120% of Rin Tohsaka's ATK to one designated enemy.
9Deals Quantum DMG equal to 130% of Rin Tohsaka's ATK to one designated enemy.
10Deals Quantum DMG equal to 140% of Rin Tohsaka's ATK to one designated enemy.
Jeweled Sword Zelretch · Skill

Deals Quantum DMG equal to 90% of Rin Tohsaka's ATK to one designated enemy.

Ability descriptions by source level. Purchased caps and bonus levels are separate.

Source levelEffect
1Deals Quantum DMG equal to 90% of Rin Tohsaka's ATK to one designated enemy.
2Deals Quantum DMG equal to 99% of Rin Tohsaka's ATK to one designated enemy.
3Deals Quantum DMG equal to 108% of Rin Tohsaka's ATK to one designated enemy.
4Deals Quantum DMG equal to 117% of Rin Tohsaka's ATK to one designated enemy.
5Deals Quantum DMG equal to 126% of Rin Tohsaka's ATK to one designated enemy.
6Deals Quantum DMG equal to 135% of Rin Tohsaka's ATK to one designated enemy.
7Deals Quantum DMG equal to 146.25% of Rin Tohsaka's ATK to one designated enemy.
8Deals Quantum DMG equal to 157.5% of Rin Tohsaka's ATK to one designated enemy.
9Deals Quantum DMG equal to 168.75% of Rin Tohsaka's ATK to one designated enemy.
10Deals Quantum DMG equal to 180% of Rin Tohsaka's ATK to one designated enemy.
11Deals Quantum DMG equal to 189% of Rin Tohsaka's ATK to one designated enemy.
12Deals Quantum DMG equal to 198% of Rin Tohsaka's ATK to one designated enemy.
13Deals Quantum DMG equal to 207% of Rin Tohsaka's ATK to one designated enemy.
14Deals Quantum DMG equal to 216% of Rin Tohsaka's ATK to one designated enemy.
15Deals Quantum DMG equal to 225% of Rin Tohsaka's ATK to one designated enemy.
An Gal Ta Ki Gal Šè · Ultimate

Deals Quantum DMG equal to 300% of Rin Tohsaka's ATK to one designated enemy, and Quantum DMG equal to 100% of Rin Tohsaka's ATK to other enemy targets. When used, recovers 1 Skill Point(s) for allies, and increases the DMG taken by all enemies by 10%, lasting for 3 turn(s).

Ability descriptions by source level. Purchased caps and bonus levels are separate.

Source levelEffect
1Deals Quantum DMG equal to 300% of Rin Tohsaka's ATK to one designated enemy, and Quantum DMG equal to 100% of Rin Tohsaka's ATK to other enemy targets. When used, recovers 1 Skill Point(s) for allies, and increases the DMG taken by all enemies by 10%, lasting for 3 turn(s).
2Deals Quantum DMG equal to 330% of Rin Tohsaka's ATK to one designated enemy, and Quantum DMG equal to 110% of Rin Tohsaka's ATK to other enemy targets. When used, recovers 1 Skill Point(s) for allies, and increases the DMG taken by all enemies by 11%, lasting for 3 turn(s).
3Deals Quantum DMG equal to 360% of Rin Tohsaka's ATK to one designated enemy, and Quantum DMG equal to 120% of Rin Tohsaka's ATK to other enemy targets. When used, recovers 1 Skill Point(s) for allies, and increases the DMG taken by all enemies by 12%, lasting for 3 turn(s).
4Deals Quantum DMG equal to 390% of Rin Tohsaka's ATK to one designated enemy, and Quantum DMG equal to 130% of Rin Tohsaka's ATK to other enemy targets. When used, recovers 1 Skill Point(s) for allies, and increases the DMG taken by all enemies by 13%, lasting for 3 turn(s).
5Deals Quantum DMG equal to 420% of Rin Tohsaka's ATK to one designated enemy, and Quantum DMG equal to 140% of Rin Tohsaka's ATK to other enemy targets. When used, recovers 1 Skill Point(s) for allies, and increases the DMG taken by all enemies by 14%, lasting for 3 turn(s).
6Deals Quantum DMG equal to 450% of Rin Tohsaka's ATK to one designated enemy, and Quantum DMG equal to 150% of Rin Tohsaka's ATK to other enemy targets. When used, recovers 1 Skill Point(s) for allies, and increases the DMG taken by all enemies by 15%, lasting for 3 turn(s).
7Deals Quantum DMG equal to 487.5% of Rin Tohsaka's ATK to one designated enemy, and Quantum DMG equal to 162.5% of Rin Tohsaka's ATK to other enemy targets. When used, recovers 1 Skill Point(s) for allies, and increases the DMG taken by all enemies by 16.25%, lasting for 3 turn(s).
8Deals Quantum DMG equal to 525% of Rin Tohsaka's ATK to one designated enemy, and Quantum DMG equal to 175% of Rin Tohsaka's ATK to other enemy targets. When used, recovers 1 Skill Point(s) for allies, and increases the DMG taken by all enemies by 17.5%, lasting for 3 turn(s).
9Deals Quantum DMG equal to 562.5% of Rin Tohsaka's ATK to one designated enemy, and Quantum DMG equal to 187.5% of Rin Tohsaka's ATK to other enemy targets. When used, recovers 1 Skill Point(s) for allies, and increases the DMG taken by all enemies by 18.75%, lasting for 3 turn(s).
10Deals Quantum DMG equal to 600% of Rin Tohsaka's ATK to one designated enemy, and Quantum DMG equal to 200% of Rin Tohsaka's ATK to other enemy targets. When used, recovers 1 Skill Point(s) for allies, and increases the DMG taken by all enemies by 20%, lasting for 3 turn(s).
11Deals Quantum DMG equal to 630% of Rin Tohsaka's ATK to one designated enemy, and Quantum DMG equal to 210% of Rin Tohsaka's ATK to other enemy targets. When used, recovers 1 Skill Point(s) for allies, and increases the DMG taken by all enemies by 21%, lasting for 3 turn(s).
12Deals Quantum DMG equal to 660% of Rin Tohsaka's ATK to one designated enemy, and Quantum DMG equal to 220% of Rin Tohsaka's ATK to other enemy targets. When used, recovers 1 Skill Point(s) for allies, and increases the DMG taken by all enemies by 22%, lasting for 3 turn(s).
13Deals Quantum DMG equal to 690% of Rin Tohsaka's ATK to one designated enemy, and Quantum DMG equal to 230% of Rin Tohsaka's ATK to other enemy targets. When used, recovers 1 Skill Point(s) for allies, and increases the DMG taken by all enemies by 23%, lasting for 3 turn(s).
14Deals Quantum DMG equal to 720% of Rin Tohsaka's ATK to one designated enemy, and Quantum DMG equal to 240% of Rin Tohsaka's ATK to other enemy targets. When used, recovers 1 Skill Point(s) for allies, and increases the DMG taken by all enemies by 24%, lasting for 3 turn(s).
15Deals Quantum DMG equal to 750% of Rin Tohsaka's ATK to one designated enemy, and Quantum DMG equal to 250% of Rin Tohsaka's ATK to other enemy targets. When used, recovers 1 Skill Point(s) for allies, and increases the DMG taken by all enemies by 25%, lasting for 3 turn(s).
Gem Magecraft · Talent

When entering combat, gains 20 "Gem Energy." When an ally target consumes or recovers Skill Points, increases their CRIT DMG by 35% for 2 turn(s). For every 1 Skill Point consumed or recovered, Rin Tohsaka gains 1 "Gem Energy." If Rin Tohsaka holds 15 or more "Gem Energy," or if the current Skill Points are 7 or more, her Skill is enhanced to "Second Magic Experiment."

Ability descriptions by source level. Purchased caps and bonus levels are separate.

Source levelEffect
1When entering combat, gains 20 "Gem Energy." When an ally target consumes or recovers Skill Points, increases their CRIT DMG by 35% for 2 turn(s). For every 1 Skill Point consumed or recovered, Rin Tohsaka gains 1 "Gem Energy." If Rin Tohsaka holds 15 or more "Gem Energy," or if the current Skill Points are 7 or more, her Skill is enhanced to "Second Magic Experiment."
2When entering combat, gains 20 "Gem Energy." When an ally target consumes or recovers Skill Points, increases their CRIT DMG by 38.5% for 2 turn(s). For every 1 Skill Point consumed or recovered, Rin Tohsaka gains 1 "Gem Energy." If Rin Tohsaka holds 15 or more "Gem Energy," or if the current Skill Points are 7 or more, her Skill is enhanced to "Second Magic Experiment."
3When entering combat, gains 20 "Gem Energy." When an ally target consumes or recovers Skill Points, increases their CRIT DMG by 42% for 2 turn(s). For every 1 Skill Point consumed or recovered, Rin Tohsaka gains 1 "Gem Energy." If Rin Tohsaka holds 15 or more "Gem Energy," or if the current Skill Points are 7 or more, her Skill is enhanced to "Second Magic Experiment."
4When entering combat, gains 20 "Gem Energy." When an ally target consumes or recovers Skill Points, increases their CRIT DMG by 45.5% for 2 turn(s). For every 1 Skill Point consumed or recovered, Rin Tohsaka gains 1 "Gem Energy." If Rin Tohsaka holds 15 or more "Gem Energy," or if the current Skill Points are 7 or more, her Skill is enhanced to "Second Magic Experiment."
5When entering combat, gains 20 "Gem Energy." When an ally target consumes or recovers Skill Points, increases their CRIT DMG by 49% for 2 turn(s). For every 1 Skill Point consumed or recovered, Rin Tohsaka gains 1 "Gem Energy." If Rin Tohsaka holds 15 or more "Gem Energy," or if the current Skill Points are 7 or more, her Skill is enhanced to "Second Magic Experiment."
6When entering combat, gains 20 "Gem Energy." When an ally target consumes or recovers Skill Points, increases their CRIT DMG by 52.5% for 2 turn(s). For every 1 Skill Point consumed or recovered, Rin Tohsaka gains 1 "Gem Energy." If Rin Tohsaka holds 15 or more "Gem Energy," or if the current Skill Points are 7 or more, her Skill is enhanced to "Second Magic Experiment."
7When entering combat, gains 20 "Gem Energy." When an ally target consumes or recovers Skill Points, increases their CRIT DMG by 56.87% for 2 turn(s). For every 1 Skill Point consumed or recovered, Rin Tohsaka gains 1 "Gem Energy." If Rin Tohsaka holds 15 or more "Gem Energy," or if the current Skill Points are 7 or more, her Skill is enhanced to "Second Magic Experiment."
8When entering combat, gains 20 "Gem Energy." When an ally target consumes or recovers Skill Points, increases their CRIT DMG by 61.25% for 2 turn(s). For every 1 Skill Point consumed or recovered, Rin Tohsaka gains 1 "Gem Energy." If Rin Tohsaka holds 15 or more "Gem Energy," or if the current Skill Points are 7 or more, her Skill is enhanced to "Second Magic Experiment."
9When entering combat, gains 20 "Gem Energy." When an ally target consumes or recovers Skill Points, increases their CRIT DMG by 65.62% for 2 turn(s). For every 1 Skill Point consumed or recovered, Rin Tohsaka gains 1 "Gem Energy." If Rin Tohsaka holds 15 or more "Gem Energy," or if the current Skill Points are 7 or more, her Skill is enhanced to "Second Magic Experiment."
10When entering combat, gains 20 "Gem Energy." When an ally target consumes or recovers Skill Points, increases their CRIT DMG by 70% for 2 turn(s). For every 1 Skill Point consumed or recovered, Rin Tohsaka gains 1 "Gem Energy." If Rin Tohsaka holds 15 or more "Gem Energy," or if the current Skill Points are 7 or more, her Skill is enhanced to "Second Magic Experiment."
11When entering combat, gains 20 "Gem Energy." When an ally target consumes or recovers Skill Points, increases their CRIT DMG by 73.5% for 2 turn(s). For every 1 Skill Point consumed or recovered, Rin Tohsaka gains 1 "Gem Energy." If Rin Tohsaka holds 15 or more "Gem Energy," or if the current Skill Points are 7 or more, her Skill is enhanced to "Second Magic Experiment."
12When entering combat, gains 20 "Gem Energy." When an ally target consumes or recovers Skill Points, increases their CRIT DMG by 77% for 2 turn(s). For every 1 Skill Point consumed or recovered, Rin Tohsaka gains 1 "Gem Energy." If Rin Tohsaka holds 15 or more "Gem Energy," or if the current Skill Points are 7 or more, her Skill is enhanced to "Second Magic Experiment."
13When entering combat, gains 20 "Gem Energy." When an ally target consumes or recovers Skill Points, increases their CRIT DMG by 80.5% for 2 turn(s). For every 1 Skill Point consumed or recovered, Rin Tohsaka gains 1 "Gem Energy." If Rin Tohsaka holds 15 or more "Gem Energy," or if the current Skill Points are 7 or more, her Skill is enhanced to "Second Magic Experiment."
14When entering combat, gains 20 "Gem Energy." When an ally target consumes or recovers Skill Points, increases their CRIT DMG by 84% for 2 turn(s). For every 1 Skill Point consumed or recovered, Rin Tohsaka gains 1 "Gem Energy." If Rin Tohsaka holds 15 or more "Gem Energy," or if the current Skill Points are 7 or more, her Skill is enhanced to "Second Magic Experiment."
15When entering combat, gains 20 "Gem Energy." When an ally target consumes or recovers Skill Points, increases their CRIT DMG by 87.5% for 2 turn(s). For every 1 Skill Point consumed or recovered, Rin Tohsaka gains 1 "Gem Energy." If Rin Tohsaka holds 15 or more "Gem Energy," or if the current Skill Points are 7 or more, her Skill is enhanced to "Second Magic Experiment."
Freeform Tohsaka Style · Talent

After Archer uses his Skill "Caladbolg II: Fake Spiral Sword" to attack, if Skill Points are 3 or fewer or if "Caladbolg II: Fake Spiral Sword" has been actively used 5 times during the current "Circuit Connection" state, and the Joint Follow-Up ATK from "Freeform Tohsaka Style" has not been triggered, Rin Tohsaka and Archer will launch Joint Follow-Up ATK on all enemies, dealing Quantum DMG equal to 150% of Rin Tohsaka's ATK and 150% of Archer's ATK respectively, and recovering 4 Skill Point(s) for allies. This Joint Follow-Up ATK can only trigger once. The trigger count resets when Rin Tohsaka's turn ends.

Ability descriptions by source level. Purchased caps and bonus levels are separate.

Source levelEffect
1After Archer uses his Skill "Caladbolg II: Fake Spiral Sword" to attack, if Skill Points are 3 or fewer or if "Caladbolg II: Fake Spiral Sword" has been actively used 5 times during the current "Circuit Connection" state, and the Joint Follow-Up ATK from "Freeform Tohsaka Style" has not been triggered, Rin Tohsaka and Archer will launch Joint Follow-Up ATK on all enemies, dealing Quantum DMG equal to 150% of Rin Tohsaka's ATK and 150% of Archer's ATK respectively, and recovering 4 Skill Point(s) for allies. This Joint Follow-Up ATK can only trigger once. The trigger count resets when Rin Tohsaka's turn ends.
2After Archer uses his Skill "Caladbolg II: Fake Spiral Sword" to attack, if Skill Points are 3 or fewer or if "Caladbolg II: Fake Spiral Sword" has been actively used 5 times during the current "Circuit Connection" state, and the Joint Follow-Up ATK from "Freeform Tohsaka Style" has not been triggered, Rin Tohsaka and Archer will launch Joint Follow-Up ATK on all enemies, dealing Quantum DMG equal to 165% of Rin Tohsaka's ATK and 165% of Archer's ATK respectively, and recovering 4 Skill Point(s) for allies. This Joint Follow-Up ATK can only trigger once. The trigger count resets when Rin Tohsaka's turn ends.
3After Archer uses his Skill "Caladbolg II: Fake Spiral Sword" to attack, if Skill Points are 3 or fewer or if "Caladbolg II: Fake Spiral Sword" has been actively used 5 times during the current "Circuit Connection" state, and the Joint Follow-Up ATK from "Freeform Tohsaka Style" has not been triggered, Rin Tohsaka and Archer will launch Joint Follow-Up ATK on all enemies, dealing Quantum DMG equal to 180% of Rin Tohsaka's ATK and 180% of Archer's ATK respectively, and recovering 4 Skill Point(s) for allies. This Joint Follow-Up ATK can only trigger once. The trigger count resets when Rin Tohsaka's turn ends.
4After Archer uses his Skill "Caladbolg II: Fake Spiral Sword" to attack, if Skill Points are 3 or fewer or if "Caladbolg II: Fake Spiral Sword" has been actively used 5 times during the current "Circuit Connection" state, and the Joint Follow-Up ATK from "Freeform Tohsaka Style" has not been triggered, Rin Tohsaka and Archer will launch Joint Follow-Up ATK on all enemies, dealing Quantum DMG equal to 195% of Rin Tohsaka's ATK and 195% of Archer's ATK respectively, and recovering 4 Skill Point(s) for allies. This Joint Follow-Up ATK can only trigger once. The trigger count resets when Rin Tohsaka's turn ends.
5After Archer uses his Skill "Caladbolg II: Fake Spiral Sword" to attack, if Skill Points are 3 or fewer or if "Caladbolg II: Fake Spiral Sword" has been actively used 5 times during the current "Circuit Connection" state, and the Joint Follow-Up ATK from "Freeform Tohsaka Style" has not been triggered, Rin Tohsaka and Archer will launch Joint Follow-Up ATK on all enemies, dealing Quantum DMG equal to 210% of Rin Tohsaka's ATK and 210% of Archer's ATK respectively, and recovering 4 Skill Point(s) for allies. This Joint Follow-Up ATK can only trigger once. The trigger count resets when Rin Tohsaka's turn ends.
6After Archer uses his Skill "Caladbolg II: Fake Spiral Sword" to attack, if Skill Points are 3 or fewer or if "Caladbolg II: Fake Spiral Sword" has been actively used 5 times during the current "Circuit Connection" state, and the Joint Follow-Up ATK from "Freeform Tohsaka Style" has not been triggered, Rin Tohsaka and Archer will launch Joint Follow-Up ATK on all enemies, dealing Quantum DMG equal to 225% of Rin Tohsaka's ATK and 225% of Archer's ATK respectively, and recovering 4 Skill Point(s) for allies. This Joint Follow-Up ATK can only trigger once. The trigger count resets when Rin Tohsaka's turn ends.
7After Archer uses his Skill "Caladbolg II: Fake Spiral Sword" to attack, if Skill Points are 3 or fewer or if "Caladbolg II: Fake Spiral Sword" has been actively used 5 times during the current "Circuit Connection" state, and the Joint Follow-Up ATK from "Freeform Tohsaka Style" has not been triggered, Rin Tohsaka and Archer will launch Joint Follow-Up ATK on all enemies, dealing Quantum DMG equal to 243.75% of Rin Tohsaka's ATK and 243.75% of Archer's ATK respectively, and recovering 4 Skill Point(s) for allies. This Joint Follow-Up ATK can only trigger once. The trigger count resets when Rin Tohsaka's turn ends.
8After Archer uses his Skill "Caladbolg II: Fake Spiral Sword" to attack, if Skill Points are 3 or fewer or if "Caladbolg II: Fake Spiral Sword" has been actively used 5 times during the current "Circuit Connection" state, and the Joint Follow-Up ATK from "Freeform Tohsaka Style" has not been triggered, Rin Tohsaka and Archer will launch Joint Follow-Up ATK on all enemies, dealing Quantum DMG equal to 262.5% of Rin Tohsaka's ATK and 262.5% of Archer's ATK respectively, and recovering 4 Skill Point(s) for allies. This Joint Follow-Up ATK can only trigger once. The trigger count resets when Rin Tohsaka's turn ends.
9After Archer uses his Skill "Caladbolg II: Fake Spiral Sword" to attack, if Skill Points are 3 or fewer or if "Caladbolg II: Fake Spiral Sword" has been actively used 5 times during the current "Circuit Connection" state, and the Joint Follow-Up ATK from "Freeform Tohsaka Style" has not been triggered, Rin Tohsaka and Archer will launch Joint Follow-Up ATK on all enemies, dealing Quantum DMG equal to 281.25% of Rin Tohsaka's ATK and 281.25% of Archer's ATK respectively, and recovering 4 Skill Point(s) for allies. This Joint Follow-Up ATK can only trigger once. The trigger count resets when Rin Tohsaka's turn ends.
10After Archer uses his Skill "Caladbolg II: Fake Spiral Sword" to attack, if Skill Points are 3 or fewer or if "Caladbolg II: Fake Spiral Sword" has been actively used 5 times during the current "Circuit Connection" state, and the Joint Follow-Up ATK from "Freeform Tohsaka Style" has not been triggered, Rin Tohsaka and Archer will launch Joint Follow-Up ATK on all enemies, dealing Quantum DMG equal to 300% of Rin Tohsaka's ATK and 300% of Archer's ATK respectively, and recovering 4 Skill Point(s) for allies. This Joint Follow-Up ATK can only trigger once. The trigger count resets when Rin Tohsaka's turn ends.
11After Archer uses his Skill "Caladbolg II: Fake Spiral Sword" to attack, if Skill Points are 3 or fewer or if "Caladbolg II: Fake Spiral Sword" has been actively used 5 times during the current "Circuit Connection" state, and the Joint Follow-Up ATK from "Freeform Tohsaka Style" has not been triggered, Rin Tohsaka and Archer will launch Joint Follow-Up ATK on all enemies, dealing Quantum DMG equal to 315% of Rin Tohsaka's ATK and 315% of Archer's ATK respectively, and recovering 4 Skill Point(s) for allies. This Joint Follow-Up ATK can only trigger once. The trigger count resets when Rin Tohsaka's turn ends.
12After Archer uses his Skill "Caladbolg II: Fake Spiral Sword" to attack, if Skill Points are 3 or fewer or if "Caladbolg II: Fake Spiral Sword" has been actively used 5 times during the current "Circuit Connection" state, and the Joint Follow-Up ATK from "Freeform Tohsaka Style" has not been triggered, Rin Tohsaka and Archer will launch Joint Follow-Up ATK on all enemies, dealing Quantum DMG equal to 330% of Rin Tohsaka's ATK and 330% of Archer's ATK respectively, and recovering 4 Skill Point(s) for allies. This Joint Follow-Up ATK can only trigger once. The trigger count resets when Rin Tohsaka's turn ends.
13After Archer uses his Skill "Caladbolg II: Fake Spiral Sword" to attack, if Skill Points are 3 or fewer or if "Caladbolg II: Fake Spiral Sword" has been actively used 5 times during the current "Circuit Connection" state, and the Joint Follow-Up ATK from "Freeform Tohsaka Style" has not been triggered, Rin Tohsaka and Archer will launch Joint Follow-Up ATK on all enemies, dealing Quantum DMG equal to 345% of Rin Tohsaka's ATK and 345% of Archer's ATK respectively, and recovering 4 Skill Point(s) for allies. This Joint Follow-Up ATK can only trigger once. The trigger count resets when Rin Tohsaka's turn ends.
14After Archer uses his Skill "Caladbolg II: Fake Spiral Sword" to attack, if Skill Points are 3 or fewer or if "Caladbolg II: Fake Spiral Sword" has been actively used 5 times during the current "Circuit Connection" state, and the Joint Follow-Up ATK from "Freeform Tohsaka Style" has not been triggered, Rin Tohsaka and Archer will launch Joint Follow-Up ATK on all enemies, dealing Quantum DMG equal to 360% of Rin Tohsaka's ATK and 360% of Archer's ATK respectively, and recovering 4 Skill Point(s) for allies. This Joint Follow-Up ATK can only trigger once. The trigger count resets when Rin Tohsaka's turn ends.
15After Archer uses his Skill "Caladbolg II: Fake Spiral Sword" to attack, if Skill Points are 3 or fewer or if "Caladbolg II: Fake Spiral Sword" has been actively used 5 times during the current "Circuit Connection" state, and the Joint Follow-Up ATK from "Freeform Tohsaka Style" has not been triggered, Rin Tohsaka and Archer will launch Joint Follow-Up ATK on all enemies, dealing Quantum DMG equal to 375% of Rin Tohsaka's ATK and 375% of Archer's ATK respectively, and recovering 4 Skill Point(s) for allies. This Joint Follow-Up ATK can only trigger once. The trigger count resets when Rin Tohsaka's turn ends.
Attack

Attacks an enemy, and after entering combat, reduces their Toughness of the corresponding Type.

Conversion Charge · Technique

After using Technique, gains 10 "Gem Energy" at the start of the next battle.

Ability descriptions by source level. Purchased caps and bonus levels are separate.

Source levelEffect
1After using Technique, gains 10 "Gem Energy" at the start of the next battle.
Second Magic Experiment · Skill

Deals Quantum DMG equal to 45% of Rin Tohsaka's ATK to all enemies. Then, consumes 3 "Gem Energy" to additionally deal Quantum DMG equal to 45% of Rin Tohsaka's ATK to one random enemy target. This repeats until "Gem Energy" is less than 3 or there are no enemy targets with current HP greater than 0. Can repeat up to 33 cycle(s). When used, if the current Skill Points are greater than 2, consumes Skill Points down to 2, and for each Point consumed, immediately gains 2 "Gem Energy."

Ability descriptions by source level. Purchased caps and bonus levels are separate.

Source levelEffect
1Deals Quantum DMG equal to 45% of Rin Tohsaka's ATK to all enemies. Then, consumes 3 "Gem Energy" to additionally deal Quantum DMG equal to 45% of Rin Tohsaka's ATK to one random enemy target. This repeats until "Gem Energy" is less than 3 or there are no enemy targets with current HP greater than 0. Can repeat up to 33 cycle(s). When used, if the current Skill Points are greater than 2, consumes Skill Points down to 2, and for each Point consumed, immediately gains 2 "Gem Energy."
2Deals Quantum DMG equal to 49.5% of Rin Tohsaka's ATK to all enemies. Then, consumes 3 "Gem Energy" to additionally deal Quantum DMG equal to 49.5% of Rin Tohsaka's ATK to one random enemy target. This repeats until "Gem Energy" is less than 3 or there are no enemy targets with current HP greater than 0. Can repeat up to 33 cycle(s). When used, if the current Skill Points are greater than 2, consumes Skill Points down to 2, and for each Point consumed, immediately gains 2 "Gem Energy."
3Deals Quantum DMG equal to 54% of Rin Tohsaka's ATK to all enemies. Then, consumes 3 "Gem Energy" to additionally deal Quantum DMG equal to 54% of Rin Tohsaka's ATK to one random enemy target. This repeats until "Gem Energy" is less than 3 or there are no enemy targets with current HP greater than 0. Can repeat up to 33 cycle(s). When used, if the current Skill Points are greater than 2, consumes Skill Points down to 2, and for each Point consumed, immediately gains 2 "Gem Energy."
4Deals Quantum DMG equal to 58.5% of Rin Tohsaka's ATK to all enemies. Then, consumes 3 "Gem Energy" to additionally deal Quantum DMG equal to 58.5% of Rin Tohsaka's ATK to one random enemy target. This repeats until "Gem Energy" is less than 3 or there are no enemy targets with current HP greater than 0. Can repeat up to 33 cycle(s). When used, if the current Skill Points are greater than 2, consumes Skill Points down to 2, and for each Point consumed, immediately gains 2 "Gem Energy."
5Deals Quantum DMG equal to 63% of Rin Tohsaka's ATK to all enemies. Then, consumes 3 "Gem Energy" to additionally deal Quantum DMG equal to 63% of Rin Tohsaka's ATK to one random enemy target. This repeats until "Gem Energy" is less than 3 or there are no enemy targets with current HP greater than 0. Can repeat up to 33 cycle(s). When used, if the current Skill Points are greater than 2, consumes Skill Points down to 2, and for each Point consumed, immediately gains 2 "Gem Energy."
6Deals Quantum DMG equal to 67.5% of Rin Tohsaka's ATK to all enemies. Then, consumes 3 "Gem Energy" to additionally deal Quantum DMG equal to 67.5% of Rin Tohsaka's ATK to one random enemy target. This repeats until "Gem Energy" is less than 3 or there are no enemy targets with current HP greater than 0. Can repeat up to 33 cycle(s). When used, if the current Skill Points are greater than 2, consumes Skill Points down to 2, and for each Point consumed, immediately gains 2 "Gem Energy."
7Deals Quantum DMG equal to 73.12% of Rin Tohsaka's ATK to all enemies. Then, consumes 3 "Gem Energy" to additionally deal Quantum DMG equal to 73.12% of Rin Tohsaka's ATK to one random enemy target. This repeats until "Gem Energy" is less than 3 or there are no enemy targets with current HP greater than 0. Can repeat up to 33 cycle(s). When used, if the current Skill Points are greater than 2, consumes Skill Points down to 2, and for each Point consumed, immediately gains 2 "Gem Energy."
8Deals Quantum DMG equal to 78.75% of Rin Tohsaka's ATK to all enemies. Then, consumes 3 "Gem Energy" to additionally deal Quantum DMG equal to 78.75% of Rin Tohsaka's ATK to one random enemy target. This repeats until "Gem Energy" is less than 3 or there are no enemy targets with current HP greater than 0. Can repeat up to 33 cycle(s). When used, if the current Skill Points are greater than 2, consumes Skill Points down to 2, and for each Point consumed, immediately gains 2 "Gem Energy."
9Deals Quantum DMG equal to 84.38% of Rin Tohsaka's ATK to all enemies. Then, consumes 3 "Gem Energy" to additionally deal Quantum DMG equal to 84.38% of Rin Tohsaka's ATK to one random enemy target. This repeats until "Gem Energy" is less than 3 or there are no enemy targets with current HP greater than 0. Can repeat up to 33 cycle(s). When used, if the current Skill Points are greater than 2, consumes Skill Points down to 2, and for each Point consumed, immediately gains 2 "Gem Energy."
10Deals Quantum DMG equal to 90% of Rin Tohsaka's ATK to all enemies. Then, consumes 3 "Gem Energy" to additionally deal Quantum DMG equal to 90% of Rin Tohsaka's ATK to one random enemy target. This repeats until "Gem Energy" is less than 3 or there are no enemy targets with current HP greater than 0. Can repeat up to 33 cycle(s). When used, if the current Skill Points are greater than 2, consumes Skill Points down to 2, and for each Point consumed, immediately gains 2 "Gem Energy."
11Deals Quantum DMG equal to 94.5% of Rin Tohsaka's ATK to all enemies. Then, consumes 3 "Gem Energy" to additionally deal Quantum DMG equal to 94.5% of Rin Tohsaka's ATK to one random enemy target. This repeats until "Gem Energy" is less than 3 or there are no enemy targets with current HP greater than 0. Can repeat up to 33 cycle(s). When used, if the current Skill Points are greater than 2, consumes Skill Points down to 2, and for each Point consumed, immediately gains 2 "Gem Energy."
12Deals Quantum DMG equal to 99% of Rin Tohsaka's ATK to all enemies. Then, consumes 3 "Gem Energy" to additionally deal Quantum DMG equal to 99% of Rin Tohsaka's ATK to one random enemy target. This repeats until "Gem Energy" is less than 3 or there are no enemy targets with current HP greater than 0. Can repeat up to 33 cycle(s). When used, if the current Skill Points are greater than 2, consumes Skill Points down to 2, and for each Point consumed, immediately gains 2 "Gem Energy."
13Deals Quantum DMG equal to 103.5% of Rin Tohsaka's ATK to all enemies. Then, consumes 3 "Gem Energy" to additionally deal Quantum DMG equal to 103.5% of Rin Tohsaka's ATK to one random enemy target. This repeats until "Gem Energy" is less than 3 or there are no enemy targets with current HP greater than 0. Can repeat up to 33 cycle(s). When used, if the current Skill Points are greater than 2, consumes Skill Points down to 2, and for each Point consumed, immediately gains 2 "Gem Energy."
14Deals Quantum DMG equal to 108% of Rin Tohsaka's ATK to all enemies. Then, consumes 3 "Gem Energy" to additionally deal Quantum DMG equal to 108% of Rin Tohsaka's ATK to one random enemy target. This repeats until "Gem Energy" is less than 3 or there are no enemy targets with current HP greater than 0. Can repeat up to 33 cycle(s). When used, if the current Skill Points are greater than 2, consumes Skill Points down to 2, and for each Point consumed, immediately gains 2 "Gem Energy."
15Deals Quantum DMG equal to 112.5% of Rin Tohsaka's ATK to all enemies. Then, consumes 3 "Gem Energy" to additionally deal Quantum DMG equal to 112.5% of Rin Tohsaka's ATK to one random enemy target. This repeats until "Gem Energy" is less than 3 or there are no enemy targets with current HP greater than 0. Can repeat up to 33 cycle(s). When used, if the current Skill Points are greater than 2, consumes Skill Points down to 2, and for each Point consumed, immediately gains 2 "Gem Energy."

References and version

Game data version: 4.6.0

Rin Tohsaka — Honkai: Star Rail Wiki ↗hsr-build.com ↗honkai-star-rail.fandom.com ↗
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