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Luka is a 4-star Physical character in Honkai Star Rail who originates from the Path of Nihility.

Luka, a Nihility character in this game, is dependent on dealing damage-over-time (DoT) to opponents. As he is classified as a Physical unit, he is able to inflict the Bleed status effect on foes.

On his own, he is a decent unit, but when paired with Kafka, Luka becomes even stronger. Nevertheless, he remains intriguing and if you happen to acquire him, we have you covered.

The upcoming sections will cover a guide for Luka, which includes his top Light Cones, Relics, Eidolons, and other important information.

Table of Contents

Luka Abilities
Luka Eidolon
Luka Light Cones
Luka Relic
Luka Team Comp

Luka’s Abilities in Honkai Star Rail

Luka’s abilities can deal a lot of damage within the game

Direct Punch: Luka’s basic attack inflicts physical damage equal to 50% of their ATK to a single enemy.
Basic Attack- Sky Shatter Fist: Consumes 2 stacks of Fighting Will. First, uses Direct Punch to deal 3 hits, with each hit dealing Physical DMG equal to 10% of Luka’s ATK to a single enemy target. Then, uses Rising Uppercut to deal 1 hit, dealing Physical DMG equal to 40% of Luka’s ATK to a single enemy target.
Skill – Lacerating Fist: Causes a target enemy to Bleed for 3 turn(s) with a 100% base chance, dealing Physical DMG equal to 60% of Luka’s ATK. The enemy will also take 24% of their HP as Physical DoT at the start of each turn while Bleeding, up to a maximum of 130% of Luka’s ATK.
Ultimate – Coup de Grâce: Upon activation, Luka gains 2 stack(s) of Fighting Will and has a guaranteed chance to amplify the target enemy’s damage received by 12% for 3 turns. Following this, the target is dealt Physical DMG equal to 198% of Luka’s ATK.
Luka’s Talent, Flying Sparks, allows him to gain 1 stack of Fighting Will after using his Basic ATK or Skill, with a maximum of 4 stacks. Once he has 2 or more stacks of Fighting Will, his Basic ATK will be enhanced to “Sky-Shatter Fist”. If his Enhanced Basic ATK’s “Rising Uppercut”lands on a Bleeding enemy, they will immediately take Bleed damage equal to 68% of the original DMG. Additionally, Luka will start the battle with 1 stack of Fighting Will.
Strategy – Anticipator: Initiate an immediate attack on the enemy. Upon engaging in combat, Luka deals Physical DMG to a single random enemy equivalent to 50% of their ATK, with a guaranteed 100% chance of inflicting Bleed. Each turn, Bleeding targets will suffer a Physical DoT based on their current HP, up to the amount of Luka’s ATK. Additionally, Luka gains 1 stack of Fighting Will at the start of each turn.

Luka’s Eidolons in Honkai Star Rail

Luka’s Eidolons enhance his abilities massively

Level 1 – Relentless Combat: While engaged in combat with a Bleeding opponent, Luka’s damage dealt will be boosted by 15% for a duration of 2 turns.
At Level 2, having the advantage of being stronger than the enemy, each time Skill successfully attacks an opponent with a Physical Weakness, 1 stack of Fighting Will is gained.
Level 3 – Born for the Ring: Skill Lv. +2, up to a maximum of Lv. 15. Talent Lv. +2, up to a maximum of Lv.15.
Level 4 – Victory is Determined by Speed: Every stack of Fighting Will obtained increases ATK by 5%, up to a maximum of 4 stacks.
The Spirit of Wildfire is at level 5 and can be upgraded to a maximum of level 15. Its basic ATK level can be increased by 1, up to a maximum of level 10.
Level 6 – A Champion’s Applause: When Enhanced Basic ATK’s Rising Upper Cut 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.

The Ideal Light Cone for Luka in Honkai Star Rail

A screenshot of Luka's best-in-slot 4-star Light Cone — HoYoverse

Resolution Shines As Pearls of Sweat is the best 4-star Light Cone for Luka

The optimal Light Cone for Luka in Honkai Star Rail is Good Night and Sleep Well. This Light Cone increases the damage dealt by the wearer based on the number of debuffs on the enemy. This effect also applies to Damage over Time attacks, with a maximum stacking limit of three debuffs.

Nevertheless, if you desire a 5-star choice, In the Name of the World is highly recommended and can be acquired from the Starlight Exchange Store for 600 Undying Starlight.

When considering a 4-star option, Resolution Shines As Pearls of Sweat may be another excellent choice for Luka. This Light Cone has the ability to Entrap enemies and decrease their DEF by 12%. It can be acquired through both the Character and Light Cone Event Warp.

Best Relic for Luka in Honkai Star Rail

Luka is a character who heavily relies on DoT, so the ideal Relic set for him is Prisoner in Deep Confinement. This set has the following set bonus:

2-piece: Increases ATK by 12%
4-piece: The wearer will ignore 6% of the target’s DEF when dealing DMG to them for every DoT they are afflicted with, up to a maximum of 3 DoTs.

Firmament Frontline Growth is the top choice for Luka’s Planar Ornament set in Honkai Star Rail. This set increases the wearer’s ATK by 12%, and if the wearer’s SPD is 135/160 or higher, they will also deal 12%/18% more DMG.

Optimal Team Composition for Luka in Honkai Star Rail

Luka, a DoT character in Honkai Star Rail, is best paired with Kafka, Silver Wolf, and Luocha in the game. Together, this team utilizes Kafka’s enabling abilities, Silver Wolf’s debuffs on enemies, and Luocha’s healing prowess to maximize Luka’s effectiveness.

Additionally, you have the option to select a team consisting of Luka, Kafka, Ruan Mei, and Huohuo. This team composition prioritizes Kafka’s ability to trigger DoTs and Ruan Mei’s contribution to increasing the party’s Break Efficiency.

Both of these teams possess exceptional strength, and your decision on what to use will be based on the content and the availability of characters.