Luka
Situational—Luka Bleeds and amps single-target Physical DoT. Ultimate “Coup de Grâce” rolls a base-chance debuff that wants Effect Hit Rate. Best with Kafka / Boothill / Fugue. ST only; Bleed cap scales off his ATK. Skip when you need AoE or have Hysilens for Physical DoT.
Luka is a 4★ Physical Nihility DoT DPS. Skill “Lacerating Fist” is the primary in-combat spend. Ultimate “Coup de Grâce” is the payoff window for damage or team utility. This Phase 1 page covers kit text, gear targets, and pull notes—team comps stay empty until Phase 2.
Overview
Quick Build
Light Cone
Incessant Rain
Best available Nihility cone on this account path.
Relic Set
Pioneer Diver of Dead Waters (4pc) + Pan-Cosmic Commercial Enterprise (2pc)
Standard Nihility relic direction for Luka.
Body
Effect Hit Rate
Main stat
Feet
SPD
Main stat
Sphere / Rope
Physical DMG% · ATK%
Substats
EHR (to threshold) > SPD > ATK% / CRIT
Strengths
- “Coup de Grâce” dumps a huge single-target Physical multiplier into one elite—boss and Apocalyptic Shadow checks are where this Ultimate earns its trace levels.
- Skill “Lacerating Fist” rolls a base-chance debuff that wants Effect Hit Rate—that is how Luka applies pressure between Ultimates.
- Talent “Flying Sparks” seeds or detonates DoT statuses in the same cast—miss the stack conditions and the burst window feels empty.
- Technique “Anticipator” opens by hitting the pack on pull-in—use it before every MoC wave, not only in the overworld.
Weaknesses
- Several Luka effects roll “base chance”—without enough Effect Hit Rate, Exposed/Shock/DEF shred simply misses on tanky bosses and the rotation feels empty.
- DoT damage needs other appliers or long-lived statuses on the field—Luka alone cannot keep every wave fully stacked without a second DoT partner.
- As a 4★ Nihility unit, Luka is easy to gear for early/mid game but usually loses the niche race to a modern limited option once that banner is built.
- Spamming “Lacerating Fist” every turn without watching Skill Points strands the rest of the team—Luka is often the SP sink.
Trace Priority
Lacerating Fist carries most of the kit’s damage or utility—level this first.
Coup de Grâce supports the main rotation—raise after the top priority traces.
Flying Sparks supports the main rotation—raise after the top priority traces.
Direct Punch is last priority outside of filling trace materials.
Stat Priority
Open with Technique if it helps, spend Skill to advance the kit’s resource, and hold Ultimate for the damage or buff window. Exact teammate order lands in Phase 2.
Open supports first, then spend the carry’s Skill/Ult inside the buff window. Exact order varies by the team tab above.
Light Cones
5★ · Path cone
Increases the wearer's Effect Hit Rate by 0.24%. When the wearer deals DMG to an enemy that currently has 3 or more debuffs, increases the wearer's CRIT Rate by 0.12%. After the wearer uses their Basic ATK, Skill, or Ultimate, there is a 1% base chance to implant Aether Code on a random hit target that does not yet have it. Targets with Aether Code receive 0.12% increased DMG for 1 turn.
Why it works —Strong Nihility option for Luka; use while farming or if signature is unavailable.
5★ · Path cone
Increases DMG dealt by the wearer by 0.24%. After every attack launched by wearer, their SPD increases by #3[f1]%, stacking up to 3 times. If the wearer hits an enemy target that is not afflicted by Erode, there is a 100% base chance to inflict Erode to the target. Enemies afflicted with Erode are also considered to be Shocked and will receive Lightning DoT at the start of each turn equal to 0.6% of the wearer's ATK, lasting for 1 turn(s).
Why it works —Flexible alternative on the same path—equip if you already own it at higher superimposition.
4★ · Path cone
For every debuff the target enemy has, the DMG dealt by the wearer increases by 0.12%, stacking up to 3 time(s). This effect also applies to DoT.
Why it works —Best accessible option for most accounts—raise superimposition when copies drop.
4★ · Path cone
Increase the wearer's CRIT Rate by 0.08%. The wearer deals 0.24% more CRIT DMG to enemies that are currently Slowed or have reduced DEF.
Why it works —Budget path cone—fine while building the account.
Relics
Team Compositions
Primary DoT detonation team for Luka. Kafka, Boothill, Huohuo are the partners the kit / endgame clears assume first.
Core carry for this shell — owns the damage plan and sets the rotation pace.
Kafka seeds or detonates DoTs — without a second DoT piece the detonation loop stalls.
Boothill is the damage seat in this shell — build the supports around their rotation, not the reverse.
Huohuo covers healing (and often Energy / cleanse) so the carry can stay on-curve.
Traces & Eidolons
Traces
Deals Physical DMG equal to 140% of Luka's ATK to one designated enemy.
Deals Physical DMG equal to 150% of Luka's ATK to one designated enemy target. In addition, there is a 100% base chance to inflict Bleed on them, lasting for 3 turn(s). While Bleeding, the enemy will take 24.0% of their Max HP as Physical DoT at the start of each turn. This DMG will not exceed more than 422% of Luka's ATK.
Receives 2 stack(s) of "Fighting Will," with a 100% base chance to increase one designated enemy target's DMG received by 24.0% for 3 turn(s). Then, deals Physical DMG equal to 396% of Luka's ATK to the target.
After Luka uses his Basic ATK "Direct Punch" or Skill "Lacerating Fist," he receives 1 stack of Fighting Will, up to 4 stacks. When he has 2 or more stacks of Fighting Will, his Basic ATK "Direct Punch" is enhanced to "Sky-Shatter Fist." After his Enhanced Basic ATK's "Rising Uppercut" hits a Bleeding enemy target, the Bleed status will immediately deal DMG for 1 time equal to 94% of the original DMG to the target. At the start of battle, Luka will possess 1 stack of Fighting Will.
Immediately attacks the enemy. Upon entering battle, Luka deals Physical DMG equal to 50% of his ATK to a random single enemy with a 100% base chance to inflict his Skill's Bleed effect on the target. Then, Luka gains 1 additional stack of Fighting Will.
Consumes 2 stacks of "Fighting Will." First, uses "Direct Punch" to deal 3 hits, with each hit dealing Physical DMG equal to 28% of Luka's ATK to one designated enemy target. Then, uses "Rising Uppercut" to deal 1 hit, dealing Physical DMG equal to 112% of Luka's ATK to the designated enemy target.
Eidolons
When Luka takes action, if the target enemy is Bleeding, increases DMG dealt by Luka by 15% for 2 turn(s).
Is it worth getting?
Small 4★ bump: When Luka takes action, if the target enemy is Bleeding, increases DMG dealt by Luka by 15% for 2 turn(s). Take dupes when they appear on rate-up; never the reason you pull the banner.
If the Skill hits an enemy target with Physical Weakness, gain 1 stack(s) of Fighting Will.
Is it worth getting?
Kit add-on: If the Skill hits an enemy target with Physical Weakness, gain 1 stack(s) of Fighting Will. Evaluate against your supports—pull only if that specific clause solves a problem you actually hit.
Skill Lv. +2, up to a maximum of Lv. 15. Talent Lv. +2, up to a maximum of Lv. 15.
Is it worth getting?
Skill + Talent levels only (+2). Free if you roll into it; never spend currency aiming for E3.
For every stack of Fighting Will obtained, increases ATK by 5%, stacking up to 4 time(s).
Is it worth getting?
Side-grade: For every stack of Fighting Will obtained, increases ATK by 5%, stacking up to 4 time(s). Happy if it drops; not a planned stopping point.
Ultimate Lv. +2, up to a maximum of Lv. 15. Basic ATK Lv. +1, up to a maximum of Lv. 10.
Is it worth getting?
Ultimate + Basic ATK levels only (+2). Skip as a goal—grab it if you overshoot toward E6, never hard-pity for it.
After the Enhanced Basic ATK's "Rising Uppercut" hits a Bleeding enemy target, the Bleed status will immediately deal DMG 1 time equal to 8% of the original DMG for every hit of Direct Punch already unleashed during the current Enhanced Basic ATK.
Is it worth getting?
Whale ceiling: After the Enhanced Basic ATK's "Rising Uppercut" hits a Bleeding enemy target. Only chase if Luka is your dedicated Nihility main and E0–E2 already feel finished.
Luka is fully usable at E0. Dedicated mains often stop at E0 before chasing higher. First stop: E0. Endgame target: E0.
Alternatives to Luka
Not sure Luka is right for you? Compare against similar characters to find your best pull.
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