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Arlan
Honkai: Star Rail · Character

Arlan

Lightning attacker with HP-costing Skill

Released Apr 26, 2023

Arlan is a 4-star Lightning character on the Destruction path. Consider him when you want a Skill that costs his own HP instead of Skill Points, while his Talent rewards missing HP with more damage. That trade makes his survival and HP management central to using him.

ElementThunderPathDestructionRarity4
Arlan GUIDE

Understand Arlan

Useful when…

  • Use his Skill for single-target Lightning damage when its HP cost is manageable.
  • Use his Ultimate to hit a target and adjacent enemies.
  • Consider his kit when the team can keep him alive while he operates at reduced HP.

HP cost and damage condition

Arlan’s Skill consumes 15% of his Max HP and deals Lightning damage to one enemy. If he does not have enough HP to pay the cost, the Skill reduces him to 1 HP. His Talent grants a damage bonus based on his current missing HP, capped at a 36% increase.

Combat use and Technique

His Ultimate deals Lightning damage to one target and adjacent enemies, giving him some area coverage around a selected target. His Technique immediately attacks an enemy and deals Lightning damage to all enemies upon entering battle. These attacks use ATK scaling in the listed descriptions. [Ability descriptions and initial parameters.]

Improvement priorities and investment

Skill and Talent levels are the most directly connected to his HP-cost and missing-HP damage mechanics; Ultimate levels matter if its adjacent-target coverage is a frequent part of his combat use. The trace tree offers ATK boosts, with HP and Effect RES boosts as defensive options. Promotion raises level separately from trace levels. A listed level 9-to-10 step for Skill, Ultimate, or Talent costs 240,000 Credits, 11 Worldbreaker Blades, one Track of Destiny, and one Destroyer’s Final Road, so compare the high-level cost with how often you field him. [Upgrade examples.]

Risks and alternatives

His Skill can reduce him to 1 HP if current HP cannot cover its cost, and the damage bonus encourages missing HP; this makes a careless Skill use hazardous. Ashveil shares Lightning and Hunt, Gilgamesh shares Lightning and Destruction, and Kafka shares Lightning but Nihility. Their listed elemental and Path labels do not establish that they share Arlan’s HP-costing Skill or missing-HP mechanic. [Candidate details.]

Limitations and tradeoffs

  • The Skill spends a portion of Arlan’s own Max HP and can leave him at 1 HP when he lacks enough HP.
  • The Talent’s damage bonus scales with missing HP, creating a direct tension between damage and safety.

Common mistakes to avoid

  • Using the Skill at low HP without accounting for its 15% Max HP cost and possible reduction to 1 HP.
  • Treating the maximum Talent bonus as always active; it depends on current missing HP.
  • Investing as though his Skill were cost-free to his survival.

Effects and reference details

Lightning Rush · Basic ATK

Deals Lightning DMG equal to 50% of Arlan's ATK to one designated enemy.

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

Source levelEffect
1Deals Lightning DMG equal to 50% of Arlan's ATK to one designated enemy.
2Deals Lightning DMG equal to 60% of Arlan's ATK to one designated enemy.
3Deals Lightning DMG equal to 70% of Arlan's ATK to one designated enemy.
4Deals Lightning DMG equal to 80% of Arlan's ATK to one designated enemy.
5Deals Lightning DMG equal to 90% of Arlan's ATK to one designated enemy.
6Deals Lightning DMG equal to 100% of Arlan's ATK to one designated enemy.
7Deals Lightning DMG equal to 110% of Arlan's ATK to one designated enemy.
8Deals Lightning DMG equal to 120% of Arlan's ATK to one designated enemy.
9Deals Lightning DMG equal to 130% of Arlan's ATK to one designated enemy.
10Deals Lightning DMG equal to 140% of Arlan's ATK to one designated enemy.
Shackle Breaker · Skill

Consumes Arlan's HP equal to 15% of his Max HP to deal Lightning DMG equal to 120% of Arlan's ATK to one designated enemy. If Arlan does not have sufficient HP, his HP will be reduced to 1 after using his Skill.

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

Source levelEffect
1Consumes Arlan's HP equal to 15% of his Max HP to deal Lightning DMG equal to 120% of Arlan's ATK to one designated enemy. If Arlan does not have sufficient HP, his HP will be reduced to 1 after using his Skill.
2Consumes Arlan's HP equal to 15% of his Max HP to deal Lightning DMG equal to 132% of Arlan's ATK to one designated enemy. If Arlan does not have sufficient HP, his HP will be reduced to 1 after using his Skill.
3Consumes Arlan's HP equal to 15% of his Max HP to deal Lightning DMG equal to 144% of Arlan's ATK to one designated enemy. If Arlan does not have sufficient HP, his HP will be reduced to 1 after using his Skill.
4Consumes Arlan's HP equal to 15% of his Max HP to deal Lightning DMG equal to 156% of Arlan's ATK to one designated enemy. If Arlan does not have sufficient HP, his HP will be reduced to 1 after using his Skill.
5Consumes Arlan's HP equal to 15% of his Max HP to deal Lightning DMG equal to 168% of Arlan's ATK to one designated enemy. If Arlan does not have sufficient HP, his HP will be reduced to 1 after using his Skill.
6Consumes Arlan's HP equal to 15% of his Max HP to deal Lightning DMG equal to 180% of Arlan's ATK to one designated enemy. If Arlan does not have sufficient HP, his HP will be reduced to 1 after using his Skill.
7Consumes Arlan's HP equal to 15% of his Max HP to deal Lightning DMG equal to 195% of Arlan's ATK to one designated enemy. If Arlan does not have sufficient HP, his HP will be reduced to 1 after using his Skill.
8Consumes Arlan's HP equal to 15% of his Max HP to deal Lightning DMG equal to 210% of Arlan's ATK to one designated enemy. If Arlan does not have sufficient HP, his HP will be reduced to 1 after using his Skill.
9Consumes Arlan's HP equal to 15% of his Max HP to deal Lightning DMG equal to 225% of Arlan's ATK to one designated enemy. If Arlan does not have sufficient HP, his HP will be reduced to 1 after using his Skill.
10Consumes Arlan's HP equal to 15% of his Max HP to deal Lightning DMG equal to 240% of Arlan's ATK to one designated enemy. If Arlan does not have sufficient HP, his HP will be reduced to 1 after using his Skill.
11Consumes Arlan's HP equal to 15% of his Max HP to deal Lightning DMG equal to 252% of Arlan's ATK to one designated enemy. If Arlan does not have sufficient HP, his HP will be reduced to 1 after using his Skill.
12Consumes Arlan's HP equal to 15% of his Max HP to deal Lightning DMG equal to 264% of Arlan's ATK to one designated enemy. If Arlan does not have sufficient HP, his HP will be reduced to 1 after using his Skill.
13Consumes Arlan's HP equal to 15% of his Max HP to deal Lightning DMG equal to 276% of Arlan's ATK to one designated enemy. If Arlan does not have sufficient HP, his HP will be reduced to 1 after using his Skill.
14Consumes Arlan's HP equal to 15% of his Max HP to deal Lightning DMG equal to 288% of Arlan's ATK to one designated enemy. If Arlan does not have sufficient HP, his HP will be reduced to 1 after using his Skill.
15Consumes Arlan's HP equal to 15% of his Max HP to deal Lightning DMG equal to 300% of Arlan's ATK to one designated enemy. If Arlan does not have sufficient HP, his HP will be reduced to 1 after using his Skill.
Frenzied Punishment · Ultimate

Deals Lightning DMG equal to 192% of Arlan's ATK to one designated enemy and Lightning DMG equal to 96% of Arlan's ATK to enemies adjacent to it.

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

Source levelEffect
1Deals Lightning DMG equal to 192% of Arlan's ATK to one designated enemy and Lightning DMG equal to 96% of Arlan's ATK to enemies adjacent to it.
2Deals Lightning DMG equal to 204.8% of Arlan's ATK to one designated enemy and Lightning DMG equal to 102.4% of Arlan's ATK to enemies adjacent to it.
3Deals Lightning DMG equal to 217.6% of Arlan's ATK to one designated enemy and Lightning DMG equal to 108.8% of Arlan's ATK to enemies adjacent to it.
4Deals Lightning DMG equal to 230.4% of Arlan's ATK to one designated enemy and Lightning DMG equal to 115.2% of Arlan's ATK to enemies adjacent to it.
5Deals Lightning DMG equal to 243.2% of Arlan's ATK to one designated enemy and Lightning DMG equal to 121.6% of Arlan's ATK to enemies adjacent to it.
6Deals Lightning DMG equal to 256% of Arlan's ATK to one designated enemy and Lightning DMG equal to 128% of Arlan's ATK to enemies adjacent to it.
7Deals Lightning DMG equal to 272% of Arlan's ATK to one designated enemy and Lightning DMG equal to 136% of Arlan's ATK to enemies adjacent to it.
8Deals Lightning DMG equal to 288% of Arlan's ATK to one designated enemy and Lightning DMG equal to 144% of Arlan's ATK to enemies adjacent to it.
9Deals Lightning DMG equal to 304% of Arlan's ATK to one designated enemy and Lightning DMG equal to 152% of Arlan's ATK to enemies adjacent to it.
10Deals Lightning DMG equal to 320% of Arlan's ATK to one designated enemy and Lightning DMG equal to 160% of Arlan's ATK to enemies adjacent to it.
11Deals Lightning DMG equal to 332.8% of Arlan's ATK to one designated enemy and Lightning DMG equal to 166.4% of Arlan's ATK to enemies adjacent to it.
12Deals Lightning DMG equal to 345.6% of Arlan's ATK to one designated enemy and Lightning DMG equal to 172.8% of Arlan's ATK to enemies adjacent to it.
13Deals Lightning DMG equal to 358.4% of Arlan's ATK to one designated enemy and Lightning DMG equal to 179.2% of Arlan's ATK to enemies adjacent to it.
14Deals Lightning DMG equal to 371.2% of Arlan's ATK to one designated enemy and Lightning DMG equal to 185.6% of Arlan's ATK to enemies adjacent to it.
15Deals Lightning DMG equal to 384% of Arlan's ATK to one designated enemy and Lightning DMG equal to 192% of Arlan's ATK to enemies adjacent to it.
Pain and Anger · Talent

Based on Arlan's current missing HP percentage, gains DMG bonus, up to a maximum increase of 36% DMG dealt by Arlan.

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

Source levelEffect
1Based on Arlan's current missing HP percentage, gains DMG bonus, up to a maximum increase of 36% DMG dealt by Arlan.
2Based on Arlan's current missing HP percentage, gains DMG bonus, up to a maximum increase of 39.6% DMG dealt by Arlan.
3Based on Arlan's current missing HP percentage, gains DMG bonus, up to a maximum increase of 43.2% DMG dealt by Arlan.
4Based on Arlan's current missing HP percentage, gains DMG bonus, up to a maximum increase of 46.8% DMG dealt by Arlan.
5Based on Arlan's current missing HP percentage, gains DMG bonus, up to a maximum increase of 50.4% DMG dealt by Arlan.
6Based on Arlan's current missing HP percentage, gains DMG bonus, up to a maximum increase of 54% DMG dealt by Arlan.
7Based on Arlan's current missing HP percentage, gains DMG bonus, up to a maximum increase of 58.5% DMG dealt by Arlan.
8Based on Arlan's current missing HP percentage, gains DMG bonus, up to a maximum increase of 63% DMG dealt by Arlan.
9Based on Arlan's current missing HP percentage, gains DMG bonus, up to a maximum increase of 67.5% DMG dealt by Arlan.
10Based on Arlan's current missing HP percentage, gains DMG bonus, up to a maximum increase of 72% DMG dealt by Arlan.
11Based on Arlan's current missing HP percentage, gains DMG bonus, up to a maximum increase of 75.6% DMG dealt by Arlan.
12Based on Arlan's current missing HP percentage, gains DMG bonus, up to a maximum increase of 79.2% DMG dealt by Arlan.
13Based on Arlan's current missing HP percentage, gains DMG bonus, up to a maximum increase of 82.8% DMG dealt by Arlan.
14Based on Arlan's current missing HP percentage, gains DMG bonus, up to a maximum increase of 86.4% DMG dealt by Arlan.
15Based on Arlan's current missing HP percentage, gains DMG bonus, up to a maximum increase of 90% DMG dealt by Arlan.
Attack

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

Swift Harvest · Technique

Immediately attacks the enemy. After entering battle, deals Lightning DMG equal to 80% of Arlan's ATK to all enemies.

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

Source levelEffect
1Immediately attacks the enemy. After entering battle, deals Lightning DMG equal to 80% of Arlan's ATK to all enemies.

References and version

Game data version: 4.6.0

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