Klein (ELF)
Last updated 2025-08-02


Lightning support, generic support, and QTE support.
Klein is an unlockable ELF in Honkai Impact 3rd.
Unlock & Rank-Up
Item:
Klein Part
Skills
ELF Skills
ELF has two forms of Basic ATK:
Basic ATK 1: Launch syringes to deal 5 x 120% ATK of Lightning DMG.
Basic ATK 2: Unleash biochemical lightning to deal 3 x 200% ATK of Lightning DMG.
ATK CD: 3.3s
Unlocked by default.
1st Skill Row
ELF has two forms of Basic ATK:
Basic ATK 1: Launch syringes to deal 5 x 120% ATK of Lightning DMG.
Basic ATK 2: Unleash biochemical lightning to deal 3 x 200% ATK of Lightning DMG.
ATK CD: 3.3s
Unlocked by default.
Each hit of Basic ATK has a 50% chance to inflict one stack of Fatigue on enemies. The chance is doubled on enemies not yet inflicted.
Unlocks at
ELF restores 2.1 SP per second in battle.
Unlocks at
ELF's Basic ATKs deal 30% bonus Lightning DMG to enemies with Fatigue.
Unlocks at
2nd Skill Row




Take out a massive syringe and smash it at enemies to trigger a toxic explosion and deal 1,800% ATK of Lightning DMG. The syringe then stays on the field and spreadspread toxin to deal 7 x 300% ATK of Lightning DMG. Casting Ultimate reduces character switch CD by 8s. The 1st hit makes enemies take 10% bonus Lightning DMG for 15s. Ultimate inflicts Fatigue on enemies hit for 8s and each stack deals 20% ATK of Lightning DMG per second. Triggering it again resets the duration. 5 stacks max.
Skill CD: 45s; SP cost: 75
Unlocked by default.








ELF Ultimate makes enemies take 15% bonus Lightning DMG instead.
Unlocks at




ELF Ultimate deals 40% bonus Total DMG. Casting Ultimate triggers the QTE of all Lightning DMG dealers on the team.
Unlocks at
3rd Skill Row




[Lineup] ELF deals 25% bonus Lightning DMG when the team leader is a Lightning DMG dealer.
Unlocked by default.




ELF's initial SP increases by 50.
Unlocks at




[Lineup] Lightning DMG dealers on the team deal 6% bonus Lightning DMG to paralyzed or fatigued enemies.
Unlocks at




[Lineup] Every Lightning DMG dealer on the team reduces ELF's Ultimate CD by 8%.
Unlocks at
4th Skill Row
Valkyries dealing Combo ATK DMG adds 1 to the count for up to once per second. When the count reaches 3, ELF performs a Joint ATK, clears the count, and launches multiple syringes at the target, dealing 10 x 80% ATK of Lightning DMG. CD: 20s. The count cannot exceed 2 during CD and starts at 2 when the battle begins.
Unlocked by default.
Joint ATKs can inflict Fatigue.
Unlocks at
ELF Joint ATKs boost team Total DMG by 5% for 12s.
Unlocks at
Joint ATK CD is reduced to 15s.
Unlocks at
※Any numbers shown are for MAX level skills.
Astral Ring Skills
Unleashes Synergy Attack. AstralOp takes out a massive bio syringe and smashes it at enemies to cause a toxic explosion, dealing 1,800% ATK of Lightning DMG. The syringe then stays on the field and spreads toxin to deal 7 x 300% ATK of Lightning DMG.
Meanwhile, AstralOp's attacks inflict Fatigue, which can be stacked 5 times, with each stack lasting 8s (retriggering refreshes duration) and dealing 20% ATK of Lightning DMG per 1s.
Unlocked by default.
1st Skill Row
Unleashes Synergy Attack. AstralOp takes out a massive bio syringe and smashes it at enemies to cause a toxic explosion, dealing 1,800% ATK of Lightning DMG. The syringe then stays on the field and spreads toxin to deal 7 x 300% ATK of Lightning DMG.
Meanwhile, AstralOp's attacks inflict Fatigue, which can be stacked 5 times, with each stack lasting 8s (retriggering refreshes duration) and dealing 20% ATK of Lightning DMG per 1s.
Unlocked by default.
The first hit of AstralOp's attack inflicts 6 Paralyze Trauma.
Unlocked by default.
AstralOp's attacks deal 30% more Lightning DMG to fatigued enemies.
Unlocks at
2nd Skill Row




In Astral Ring Charging state, landing an attack sends all team members into Intensity Recovery state for 1s, which restores 1 Astral Ring Intensity per 0.5s. Start a battle with 40 more Astral Ring Intensity, which applies once every 10 min in Part 2's Open World and shares a CD with other AstralOps. Enemies take 7% more Lightning DMG in Stellar Outburst state.
Unlocked by default.




Entering Stellar Outburst state reduces switch CD by 8s.
Unlocked by default.




During Stellar Outburst, enemies take 11% more Lightning DMG instead.
Unlocks at
3rd Skill Row




[Team-triggered] When the team leader is a Lightning DMG dealer, AstralOp deals 25% more Lightning DMG.
Unlocked by default.




Count once when any team member deals DMG with Combo ATK. Can only count once every second. On the count of 3, inflicts 2 stacks of Fatigue on the enemy hit.
Unlocked by default.




AstralOp deals 40% more Total DMG.
[Team-triggered] Lightning DMG dealers on the team deal 6% more Lightning DMG to paralyzed or fatigued enemies.
Unlocks at




The character deals 5% more Total DMG to fatigued enemies.
Unlocks at
※Any numbers shown are for MAX level skills.
Quotes
| Menu | |||
| Action | Quote | ||
| Select ELF |
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| Poke ELF |
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| Story | |||
| Section | Quote | ||
| Self Introduction |
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| Time with Captain |
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| Her Secret Diary |
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Trivia
- In Version 7.3, she gained [Astral Ring Skills].
- She shares her Chinese voice actress with Nahralab.




















