Honkai Star Rail Luka is a Nihility character who excels at boosting team damage through Bleed effects and enemy debuffs. A skilled fighter from the Underworld’s Wildfire group, Luka uses his mechanical arm and MMA-honed strength to weaken foes over time. Fueled by personal loss, he fights to protect others, applying constant pressure in battle with high-speed attacks and Fighting Will stacks that amplify his Physical damage.
Luka Build
The Nihility
Physical
⭐️⭐️⭐️⭐️
HP
917
ATK
582
DEF
485
Speed
103
Taunt
100
Luka Upgrade Materials
Best Relics
Body: ATK%
Feet: Speed / ATK%
Planar Sphere: Physical DMG
Link Rope: ATK%
Speed
ATK%
Effect Hit Rate
Break Effect
Honkai Star Rail Luka Guide: Abilities and Skills
Direct Punch
Luka Normal Attack
Single Target
Deals Physical DMG equal to 50% of Luka’s ATK to a single enemy.
Lacerating Fist
Luka Skill
Single Target
Deals Physical DMG equal to 60% of Luka’s ATK to a single 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% of their Max HP as Physical DoT at the start of each turn. This DMG will not exceed more than 130% of Luka’s ATK.
Snowfield First Aid
Luka Ultimate
Single Target
Energy Cost: 130
Receives 2 stack(s) of Fighting Will, with a 100% base chance to increase a single enemy target’s DMG received by 12% for 3 turn(s). Then, deals Physical DMG equal to 198% of Luka’s ATK to the target.
Flying Sparks
Luka Talent
Enhance
After Luka uses his Basic ATK or Skill, he receives 1 stack(s) of Fighting Will, up to 4 stacks. When he has 2 or more stacks of Fighting Will, his Basic ATK becomes Enhanced Basic ATK. When his Enhanced Basic ATK Sky-Shatter Fist hits a Bleeding enemy target, the target will be immediately dealt Bleed DMG for 1 time equal to 68% of the original DMG. At the start of battle, Luka will possess 1 stack of Fighting Will.
Anticipator
Luka Technique
Impair
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.
Kinetic Overload
First Tier (Ascension 2)
When the Skill is used, immediately dispels 1 buff from the enemy target.
Second Tier (Ascension 2)
Effect Hit Rate + 4%
Third Tier (Ascension 3)
ATK + 4%
Fourth Tier (Ascension 3)
DEF + 4%
The Secret Strategy
First Tier (Ascension 4)
For every stack of Fighting Will obtained, additionally regenerates 3 Energy.
Second Tier (Ascension 4)
ATK + 6%
Third Tier (Ascension 5)
Effect Hit Rate + 6%
Fourth Tier (Ascension 5)
ATK + 6%
Crush Fighting Will
First Tier (Ascension 6)
When using Enhanced Basic ATK, every hit Direct Punch deals has a 50% fixed chance for Luka to use 1 additional hit. This effect does not apply to additional hits generated in this way.
Second Tier (Ascension 6)
DEF + 7.5%
Third Tier (Lv. 75)
Effect Hit Rate + 8%
Fighting Endlessly
Luka Eidolon Level 1
When Luka takes action, if the target enemy is Bleeding, increases DMG dealt by Luka by 15% for 2 turn(s).
The Enemy is Weak, I am Strong
Luka Eidolon Level 2
If the Skill hits an enemy target with Physical Weakness, gain 1 stack(s) of Fighting Will.
Born for the Ring
Luka Eidolon Level 3
Skill Lv. +2, up to a maximum of Lv. 15.
Talent Lv. +2, up to a maximum of Lv. 15.
Never Turning Back
Luka Eidolon Level 4
For every stack of Fighting Will obtained, increases ATK by 5%, stacking up to 4 time(s).
The Spirit of Wildfire
Luka Eidolon Level 5
Ultimate Lv. +2, up to a maximum of Lv. 15.
Basic ATK Lv. +1, up to a maximum of Lv. 10.
A Champion’s Applause
Luka Eidolon Level 6
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.
Honkai Star Rail Luka Guide: Team Compositions
Honkai Star Rail Luka is a flexible Nihility unit who fits both DPS and support roles. His Bleed and damage-boosting debuffs make him a strong team amplifier. Here are two team comps that highlight Luka’s synergy and strategic versatility.
Premium Team (Luka as Main DPS)
Luka
Honkai Star Rail Luka excels as a Main DPS by inflicting Bleed and increasing enemy damage taken. His kit rapidly breaks weaknesses and builds Fighting Will stacks to deal high Physical damage, making him ideal for boosting overall team output.
Yanqing
Yanqing thrives as a Main DPS with high Crit Rate and Crit DMG. His abilities boost crit potential and reward precision, making him effective when paired with support units that break weaknesses or enhance his critical strike efficiency.
Gepard
Gepard is a top-tier shielder whose DEF-scaling barriers protect the team from heavy damage. His shields are vital for survival in difficult fights, letting fragile allies safely deal damage while he maintains defensive control.
Natasha
Natasha is a reliable healer who restores team HP and ensures long-term survivability. Her abilities scale with her stats and are key for keeping DPS characters in the fight, especially in sustained or boss-heavy encounters.
Honkai Star Rail Luka Guide: Ascension Materials
Luka Ascension Materials
| Level | Credits | Enemy Drops | Stagnant Shadow Drops |
|---|---|---|---|
| 20 | 3,200 | 4x Ancient Part | |
| 30 | 6,400 | 8x Ancient Part | |
| 40 | 12,800 | 5x Ancient Spindle | 2x Broken Teeth of Iron Wolf |
| 50 | 32,000 | 8x Ancient Spindle | 5x Broken Teeth of Iron Wolf |
| 60 | 64,000 | 5x Ancient Engine | 15x Broken Teeth of Iron Wolf |
| 70 | 128,000 | 7x Ancient Engine | 28x Broken Teeth of Iron Wolf |
Luka Basic Attack Trace Materials
| Level | Credits | Calyx Materials | Enemy Drops |
|---|---|---|---|
| 2 | 4,000 | 2x Obsidian of Dread | 4x Ancient Part |
| 3 | 8,000 | 2x Obsidian of Desolation | 2x Ancient Spindle |
| 4 | 16,000 | 4x Obsidian of Desolation | 3x Ancient Spindle |
| 5 | 36,000 | 2x Obsidian of Obsession | 2x Ancient Engine |
| 6 | 128,000 | 6x Obsidian of Obsession | 3x Ancient Engine |
Luka Trace Talent, Skill, and Ultimate Materials
| Level | Credits | Calyx Materials | Enemy Drops | Echoes of War Drops | Tracks of Destiny |
|---|---|---|---|---|---|
| 2 | 2,000 | 2x Ancient Part | |||
| 3 | 4,000 | 2x Obsidian of Dread | 4x Ancient Part | ||
| 4 | 8,000 | 2x Obsidian of Desolation | 2x Ancient Spindle | ||
| 5 | 16,000 | 4x Obsidian of Desolation | 3x Ancient Spindle | ||
| 6 | 24,000 | 6x Obsidian of Desolation | 5x Ancient Spindle | ||
| 7 | 36,000 | 2x Obsidian of Obsession | 2x Ancient Engine | ||
| 8 | 64,000 | 4x Obsidian of Obsession | 3x Ancient Engine | 1x Regret of Infinite Ochema | |
| 9 | 128,000 | 6x Obsidian of Obsession | 1x Regret of Infinite Ochema | ||
| 10 | 240,000 | 11x Obsidian of Obsession | 1x Regret of Infinite Ochema | 1x Tracks of Destiny |
Luka Ascension Abilities Materials
| Name | Credits | Trace Materials | Echoes of War Drops | Tracks of Destiny |
|---|---|---|---|---|
| Kinetic Overload | 4,000 | 2x Obsidian of Dread | 1x Regret of Infinite Ochema | |
| Cycle Braking | 16,000 | 4x Obsidian of Desolation | 1x Regret of Infinite Ochema | 1x Tracks of Destiny |
| Crush Fighting Will | 128,000 | 6x Obsidian of Obsession | 1x Regret of Infinite Ochema | 1x Tracks of Destiny |
Honkai Star Rail Luka Guide: Conclusion
Honkai Star Rail Luka is a flexible Nihility character who excels as both a main DPS and a support. With Bleed infliction, Physical damage, and Fighting Will stacks, he boosts team output while weakening enemies. Whether amplifying damage or breaking weaknesses, Luka adapts to many team setups. Build him with Speed, ATK%, Effect Hit Rate, and Break Effect for best results. With the right Light Cones and Relics, Luka becomes a key asset in any team composition.
Frequently Asked Questions (F.A.Q)
❓Does Luka work in Simulated Universe?
Very well. Luka excels in SU with Nihility or DoT Blessings, especially those boosting Bleed or Break mechanics. He fits both DPS and support roles.
❓Can Luka break shields effectively?
Yes. With decent Speed and frequent attacks, Luka builds up Break quickly. Pair him with Thief of Shooting Meteor to boost Break Effect further.
❓Is Luka viable without Eidolons?
Yes. Even at E0, Luka is fully functional. Eidolons improve consistency and damage, but his full kit is effective without them.
❓Is Luka good in Forgotten Hall/Memorial Arena?
Yes. In modes where single-target or DoT pressure is key, Luka shines. He weakens enemies and contributes sustained Bleed damage over time.

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