Genshin Impact Illuga Build
Polearm 
Geo Lightkeepers 23/12 Oriolus Domain of Mastery: Shadowed Legacy Member of the investigation squad, the Nightmare Orioles. The youngest squad leader among the Lightkeepers.
Best builds for Illuga
BUFF SUPPORT Build
Weapons
Substats Priority
Talents Priority
Recommended Primary Stats
Elemental Mastery / Energy Recharge
Elemental Mastery
Elemental Mastery
Illuga is not affected by Lightkeeper's Oath.
Nightingale's Song initially has 21 stacks, and it can gain up to 15 additional stacks for every Geo Construct on the field when Nightingale's Song's Burst is used, or if Geo Constructs are created during the Burst, with 5 stacks gained per Geo Construct.
The Moondrifts created by the Lunar-Crystallize reaction are considered Geo Constructs.
Illuga is an OFF-FIELD BUFF SUPPORT character who buffs Geo DMG and Lunar-Crystallize DMG after using his Elemental Burst, which grants the Nightingale's Song effect. This buff scales on Illuga's Elemental Mastery, and with his A4 talent, is further amplified depending on how many Geo and Hydro characters are in the party. With his A1 talent, using either his Skill or Burst will grant other team members the Lightkeeper's Oath effect, which boosts the Crit Rate and DMG of Geo DMG, and if Ascendant Gleam is active, boost the character's Elemental Mastery as well.
Illuga's [C1] grants him 12 Energy if he triggers a Geo-related reaction while on-field, effectively changing his Burst cost from 60 to 48. This has a cooldown of 15 seconds.
Regarding Weapon Choices:
- Dragon's Bane: An Energy Recharge sands may be necessary if you are unable to get enough ER from substats alone.
Regarding Artifacts:
- Silken Moon's Serenade (4): This set requires [C2] Illuga.
Most-used community build
Weapons
Best teams for Illuga
Illuga Lunar-Crystallize Team #1
SSA team focused on triggering Lunar-Crystallize with Zibai as the main DPS, supported by Illuga's Geo buffs, Columbina's off-field Hydro application, and Gorou's Geo and DEF bonuses.
Zibai deals Lunar-Crystallize damage using her enhanced Elemental Skill, consuming Phase Shift Radiance restored by attacks and reactions. Illuga amplifies Geo damage and Lunar-Crystallize via his Burst, while Columbina provides consistent Hydro and Gorou boosts Geo DMG and DEF.
Team composition: Zibai (Geo Main DPS), Illuga (Geo Support), Columbina (Hydro Sub DPS), Gorou (Geo Support)
Main DPS who triggers Lunar-Crystallize via enhanced Skill after casting, consuming Phase Shift Radiance restored by attacks and reactions. Gains bonus DEF and Elemental Mastery with Geo/Hydro teammates.
Weapons: Lightbearing Moonshard, Flute of Ezpitzal
Artifacts: 4pc Night of the Sky's Unveiling
Substats: CRIT DMG > CRIT Rate > DEF% > Elemental Mastery > Energy Recharge
Support who grants Geo DMG bonus, enhanced Lunar-Crystallize, CRIT Rate/CRIT DMG for Geo, and DEF (C4) via Burst. Also provides team Elemental Mastery and scales bonuses with number of Geo/Hydro teammates.
Weapons: Dragon's Bane
Artifacts: 4pc Silken Moon's Serenade
Substats: Elemental Mastery > Energy Recharge > DEF%
Off-field Hydro applicator via Skill and deals direct Lunar damage based on most frequent reaction type. Burst deploys aura that buffs all three Lunar reactions.
Weapons: Nocturne's Curtain Call, Sacrificial Jade
Artifacts: 4pc Aubade of Morningstar and Moon
Substats: CRIT Rate > CRIT DMG > Energy Recharge > HP%
Support providing Geo DMG bonus and DEF bonus to Geo teammates, especially at C6.
Weapons: Favonius Warbow
Artifacts: 4pc Instructor
Substats: Energy Recharge > CRIT DMG > CRIT Rate > DEF%
Illuga Lunar-Crystallize Team #3
SSA Lunar-Crystallize team focusing on Zibai's enhanced Skill damage, supported by Illuga's burst and Columbina's Hydro application, with Zhongli's shield.
Zibai deals Lunar-Crystallize damage using her enhanced Elemental Skill, supported by Illuga's burst that boosts Geo and Lunar-Crystallize effects, Columbina's off-field Hydro for reactions, and Zhongli's shield for protection.
Team composition: Zibai (Geo Main DPS), Illuga (Geo Support), Columbina (Hydro Sub DPS), Zhongli (Geo Support)
Uses enhanced Skill for Lunar-Crystallize DMG. Recovers Phase Shift Radiance via attacks and reactions. Gains DEF/EM with Geo/Hydro teammates.
Weapons: Lightbearing Moonshard, Flute of Ezpitzal
Artifacts: 4pc Night of the Sky's Unveiling
Substats: CRIT DMG > CRIT Rate > DEF% > Elemental Mastery > Energy Recharge
Burst grants Geo DMG, Lunar-Crystallize bonuses, CRIT rate/DMG, and EM. Buffs increase with Hydro/Geo party members.
Weapons: Dragon's Bane
Artifacts: 4pc Silken Moon's Serenade
Substats: Elemental Mastery > Energy Recharge > DEF%
Skill provides off-field Hydro or Lunar reactions. Burst buffs all Lunar reaction types.
Weapons: Nocturne's Curtain Call, Sacrificial Jade
Artifacts: 4pc Aubade of Morningstar and Moon
Substats: CRIT Rate > CRIT DMG > Energy Recharge > HP%
Shield provides safe environment for team members.
Weapons: Favonius Lance
Artifacts: 4pc Instructor
Substats: CRIT Rate > DEF%
Illuga Lunar-Crystallize Team #4
SA team focused on Lunar-Crystallize reactions with Illuga boosting Itto's Geo damage, supported by Columbina's Hydro application and Gorou's Geo buffs.
Illuga's Elemental Burst grants Geo DMG bonuses and enhanced Lunar-Crystallize effects, while Columbina provides off-field Hydro for Lunar-Crystallize reactions and Gorou further supports Geo teammates.
Team composition: Arataki Itto (Geo Main DPS), Illuga (Geo Support), Columbina (Hydro Sub DPS), Gorou (Geo Support)
Main DPS using continuous Charge Attack – Arataki Kesagiri to deal DMG.
Weapons: Redhorn Stonethresher, Serpent Spine
Artifacts: 4pc Husk of Opulent Dreams
Substats: CRIT DMG > CRIT Rate > DEF% > Energy Recharge > Elemental Mastery
Supports on-field Geo DPS by activating Elemental Burst, granting Geo DMG bonuses, enhanced Lunar-Crystallize effects, increased Geo CRIT Rate & CRIT DMG, and increased DEF (C4), while providing Elemental Mastery to the team.
Weapons: Dragon's Bane
Artifacts: 4pc Silken Moon's Serenade
Substats: Elemental Mastery > Energy Recharge > DEF%
Uses Elemental Skill for continuous off-field AoE Hydro application or triggering Lunar reactions. Elemental Burst deploys an aura that buffs Lunar-Charged, Lunar-Crystallize, and Lunar-Bloom reactions.
Weapons: Nocturne's Curtain Call, Sacrificial Jade
Artifacts: 4pc Aubade of Morningstar and Moon
Substats: CRIT Rate > CRIT DMG > Energy Recharge > HP%
Supports Geo teammates by providing Geo DMG Bonus and DEF Bonus.
Weapons: Favonius Warbow
Artifacts: 4pc Instructor
Substats: Energy Recharge > CRIT DMG > CRIT Rate > DEF%
Illuga Lunar-Crystallize Team #5
SA Geo-Hydro team focusing on Illuga's buffs to Geo damage and Lunar-Crystallize reactions, with Noelle as the on-field DPS and Columbina providing off-field Hydro application.
Illuga supports the Geo DPS with Geo DMG bonuses and enhanced Lunar-Crystallize effects, while Columbina applies Hydro off-field and triggers Lunar reactions.
Team composition: Noelle (Geo Sub DPS), Illuga (Geo Support), Columbina (Hydro Sub DPS), Gorou (Geo Support)
Noelle uses Elemental Burst to turn her Normal Attack to Geo DMG.
Weapons: Redhorn Stonethresher, Serpent Spine
Artifacts: 4pc Husk of Opulent Dreams
Substats: CRIT DMG > CRIT Rate > DEF% > Energy Recharge > Elemental Mastery
Illuga primarily supports the on-field Geo DPS by activating his Elemental Burst, granting Geo DMG bonuses, enhanced Lunar-Crystallize effects, increased Geo CRIT Rate & CRIT DMG, and increased DEF (C4), while also providing Elemental Mastery to the entire team.
Weapons: Dragon's Bane
Artifacts: 4pc Silken Moon's Serenade
Substats: Elemental Mastery > Energy Recharge > DEF%
Columbina uses her Elemental Skill to provide continuous off-field, AoE Hydro application or triggering Lunar reactions. Her Elemental Burst deploys an aura, granting buffs to Lunar reactions: Lunar-Charged, Lunar Crystallize, and Lunar-Bloom.
Weapons: Nocturne's Curtain Call, Sacrificial Jade
Artifacts: 4pc Aubade of Morningstar and Moon
Substats: CRIT Rate > CRIT DMG > Energy Recharge > HP%
Gorou supports Geo teammates by providing Geo DMG Bonus (especially when C6) and DEF Bonus.
Weapons: Favonius Warbow
Artifacts: 4pc Instructor
Substats: Energy Recharge > CRIT DMG > CRIT Rate > DEF%
Illuga Lunar-Crystallize Team #6
SSA team centered around Illuga's Lunar-Crystallize support, with Navia maximizing Elemental Shard damage, Columbina providing Hydro application and Lunar reaction buffs, and Chiori dealing Geo damage.
Illuga's Elemental Burst boosts Geo DMG, CRIT, and DEF, while his talent enhances Lunar-Crystallize. Navia triggers shards for her Skill damage. Columbina applies Hydro and buffs all three Lunar reactions. Chiori benefits from teammate ATK and Geo Construct boosts.
Team composition: Illuga (Geo Support), Navia (Geo Sub DPS), Columbina (Hydro Sub DPS), Chiori (Geo Sub DPS)
Primarily supports the on-field Geo DPS by activating his Elemental Burst, granting Geo DMG bonuses, enhanced Lunar-Crystallize effects, increased Geo CRIT Rate & CRIT DMG, and increased DEF (C4), while also providing Elemental Mastery to the entire team.
Weapons: Dragon's Bane
Artifacts: 4pc Silken Moon's Serenade
Substats: Elemental Mastery > Energy Recharge > DEF%
Relies on her teammates to trigger Elemental Shard, maximizing the damage of her Elemental Skill.
Weapons: Verdict, Serpent Spine
Artifacts: 4pc Nighttime Whispers in the Echoing Woods
Substats: CRIT DMG > CRIT Rate > ATK% > Energy Recharge
Uses her Elemental Skill to provide continuous off-field, AoE Hydro application or triggering Lunar reactions. Her Elemental Burst deploys an aura, and her talent grants buffs to Lunar-Charged, Lunar Crystallize, and Lunar-Bloom.
Weapons: Nocturne's Curtain Call, Sacrificial Jade
Artifacts: 4pc Aubade of Morningstar and Moon
Substats: CRIT Rate > CRIT DMG > Energy Recharge > HP%
With the support of teammates' ATK buffs and the bonus from teammates' Geo Construct triggering talents, the DMG of her Elemental Skill and Elemental Burst is maximized.
Weapons: Uraku Misugiri, Wolf-Fang
Artifacts: 4pc Golden Troupe
Substats: CRIT Rate > CRIT DMG > DEF% > ATK%
Illuga Skills
Passive Talents
Torchforger's Covenant
Ascension Phase 1Moonsign: Ascendant Gleam
Party members affected by the Lightkeeper's Oath effect have their Elemental Mastery increased by 50.
Demonhunter's Dusk
Ascension Phase 4
Moonsign Benediction: Unwithering in Winter
Passive
Night Warden's Stride
PassiveDoes not take effect in Domains, Trounce Domains, or Spiral Abyss. Swift Stride does not stack.
Additionally, Illuga appears to be able to decipher the whispers of the Wild Hunt...
Constellations
Vigilant Sentinel
C1
Elk With Fanged Antlers
C2
Earthshaking Maw
C3Maximum upgrade level is 15.
Solarhunting Wolf
C4
Hurricane Steed
C5Maximum upgrade level is 15.
Nightmare Orioles
C6Moonsign: Ascendant Gleam:
When characters are affected by Lightkeeper's Oath, Elemental Mastery is increased by 80.
You must first unlock the Ascension Talent "Torchforger's Covenant."
Outfits
Steadfast Resolve
Illuga's outfit is a custom-made uniform that was designed with his duties in mind. Though it is technically meant for work, Illuga has so many responsibilities that he rarely gets the chance to change his clothes, so in practice, this uniform might as well be considered his everyday wear.
Stats
Ascension Materials
Mora
420,000
Prithiva Topaz Sliver
1
Prithiva Topaz Fragment
9
Prithiva Topaz Chunk
9
Prithiva Topaz Gemstone
6
Cyclic Military Kuuvahki Core
46
Pine Amber
168
Broken Drive Shaft
18
Reinforced Drive Shaft
30
Precision Drive Shaft
36
| Level | Mora | Materials | |||
|---|---|---|---|---|---|
| Lv.40 | | 1 | — | 3 | 3 |
| Lv.50 | | 3 | 2 | 10 | 15 |
| Lv.60 | | 6 | 4 | 20 | 12 |
| Lv.70 | | 3 | 8 | 30 | 18 |
| Lv.80 | | 6 | 12 | 45 | 12 |
| Lv.90 | | 6 | 20 | 60 | 24 |
Talent Materials
Mora
1,652,500
Teachings of Elysium
3
Guide to Elysium
21
Philosophies of Elysium
38
Broken Drive Shaft
6
Reinforced Drive Shaft
22
Precision Drive Shaft
31
Eroded Horn
6
Crown of Insight
1
| Level | Mora | Materials | |||
|---|---|---|---|---|---|
| Lv.1→2 | | | | ||
| Lv.2→3 | | | | ||
| Lv.3→4 | | | | ||
| Lv.4→5 | | | | ||
| Lv.5→6 | | | | ||
| Lv.6→7 | | | | | |
| Lv.7→8 | | | | | |
| Lv.8→9 | | | | | |
| Lv.9→10 | | | | | |