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Prized Isshin Blade
Genshin Impact · Weapon

Prized Isshin Blade

Temporary quest-form sword with a periodic area hit and self-healing effect.

Introduced in v2.8

Prized Isshin Blade is a temporary four-star sword form with 42.401 Base ATK and an ATK secondary stat. Consider it when its attack-triggered effect is useful during the story encounter: a Normal, Charged, or Plunging Attack that hits an opponent releases an Accursed Spirit, dealing area damage and restoring HP to the wielder. The effect can trigger once every 8 seconds, but the wielder’s damage is decreased by 50%.

WeaponSwordRarity4Base ATK42Secondary statATKAvailabilityTemporary story-quest form
Prized Isshin Blade GUIDE

Understand Prized Isshin Blade

Useful when…

  • Using its periodic area hit and healing during the story encounter where this temporary form is available.
  • Comparing its self-sustain against a version of the form that has no listed healing effect.

What triggers the effect?

A Normal, Charged, or Plunging Attack must hit an opponent to release the Accursed Spirit. It deals area damage equal to 180% of ATK and restores HP equal to 100% of ATK. The effect can trigger once every 8 seconds; these percentages describe the weapon effect and do not imply that it triggers on every hit.

What does the wielder give up?

The weapon decreases the wielder’s damage by 50%. That penalty is a major limitation for a sword user whose contribution depends on dealing damage. The periodic area hit and healing may be useful in the temporary encounter, but the listed effect does not remove the penalty or provide continuous healing.

How should it be treated as equipment?

This is a temporary story-quest form, with 42.401 Base ATK and an ATK secondary stat. Quest weapon forms do not inherit ordinary leveling, so do not plan its use around standard weapon-level investment. Its listed trigger requires an attack to connect; simply equipping the sword does not release the spirit.

How does the related form differ?

A related Prized Isshin Blade form has the same listed attack trigger, 180% ATK area damage, 8-second trigger limit, and 50% wielder damage decrease, but its effect description does not include HP restoration. The healing described here is therefore a meaningful distinction between the forms.

Limitations and tradeoffs

  • The triggered effect adds area damage and restores HP, while the wielder takes a 50% damage decrease.
  • Its temporary story-quest availability and lack of ordinary weapon leveling limit its role as a long-term equipment investment.

Common mistakes to avoid

  • Assuming every attack triggers the effect; it is limited to once every 8 seconds.
  • Overlooking the 50% decrease to the wielder’s damage.
  • Treating the temporary quest form as a normally levelable weapon.

Effects and reference details

Refinement effects

R1 When a Normal, Charged, or Plunging Attack hits an opponent, it will release an Accursed Spirit, dealing AoE DMG equal to 180% of ATK and restoring 100% of ATK as HP. This effect can be triggered once every 8s. The DMG done by this weapon's wielder is decreased by 50%.

References and version

Game data version: 7.1

Prized Isshin Blade — Genshin Impact Wiki ↗genshin-impact.fandom.com ↗
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