Overview
Quick Build
Weapon
Increases DMG against opponents affected by Hydro or Pyro by 20% / 24% / 28% / 32% / 36%. Great EM stat stick that provi
Artifacts
Silken Moon's Serenade
When dealing Elemental DMG, gain the Gleaming Moon: Devotion effect for 8s: Increases all party members' Elemental Maste
Sands
Elemental Mastery
Main stat
Goblet
Elemental Mastery > Energy Recharge
Main stat
Circlet
Elemental Mastery
Substats
Energy Recharge (Until Requirement) > Elemental Mastery > CRIT Rate (with Favonius)
Strengths
- Strong support for Lunar-Crystalize teams (specifically Zibai)
- Does not require heavy investment
- Provides value even for non-Lunar-Crystalize Geo teams
- Most constellation further increase team buffs
Weaknesses
- Requires C2 to use the Silken Moon's Serenade artifact set
- Lunar-Crystalize buffs are limited to direct damage which few characters can currently use
Talent Priority
Primary source of damage or support. Level to 10 first.
Important for damage or support value. Level second.
Lowest priority. Level last or skip unless you have spare resources.
Substat Priority
Cast Skill then Burst each rotation.
Follow the recommended rotation for optimal Illuga performance.
Weapons
5-star Weapons
4-star Weapons
Artifact Sets
Sands
Elemental Mastery
Goblet
Elemental Mastery > Energy Recharge
Circlet
Elemental Mastery
Team Compositions

Zibai
Main DPS

Columbina
Support

Illuga
Support

Gorou
Sustain
This team maximizes Zibai's Lunar-Crystallize output by pairing her with Columbina for consistent Hydro application and Illuga for reaction damage amplification. Gorou completes the setup by providing critical Geo DEF and DMG buffs to ensure the team maintains high sustained damage.

Illuga is a synergistic 4-star support for Zibai. Zibai deals direct Lunar-Crystallize and enables the reaction, whereas Illuga can buff direct Lunar-Crystallize damage through his burst and provide further buffs, such as 5% CRIT Rate and 10% CRIT DMG for Geo attacks.

Applies consistent Hydro for Lunar-Crystallize and triggers her Elemental Burst to grant a permanent Lunar Reaction DMG % bonus to the team.

Enhances Lunar-Crystallize reaction damage via his Elemental Burst while providing CRIT Rate and CRIT DMG buffs specifically for Geo damage instances.

Deploys an AoE field that provides a flat DEF boost and Geo DMG bonus, significantly scaling Zibai's personal damage.
Talents & Constellations
Talents
Performs up to 4 consecutive spear strikes.
Summons the trusty messenger bird, "Aedon." Different effects are produced depending on whether the skill is Tapped or Held. Tap Aedon dashes towards enemies in front, dealing Geo DMG to enemies it comes into contact with. Hold Enter aiming mode, and command Aedon to dash towards opponents being aimed at, dealing Geo DMG to opponents it comes into contact with.
Light the lamp, dealing AoE Geo DMG, and gain Haunted Night's Oriole-Song effect for 20s. When this effect is active, Illuga gains 21 stacks of Nightingale's Song. When Normal Attacks, Charged Attacks, Plunging Attacks, Elemental Skills, and Elemental Bursts of nearby active party members deal Geo DMG to opponents, 1 stack of Nightingale's Song is consumed to increase the DMG dealt. Increase in DMG is based on Illuga's Elemental Mastery. If DMG is inflicted by Lunar-Crystallize, DMG dealt will increase further. When Geo DMG dealt in this manner hits multiple opponents, multiple stacks of Nightingale's Song will be consumed, depending on how many opponents are hit. Additionally, if there are Geo Constructs created by nearby party members on the battlefield while Illuga unleashes his Elemental Burst, or when nearby party members create Geo Constructs while Haunted Night's Oriole-Song is active, every Geo Construct on the battlefield will allow Illuga to gain 5 additional stacks of Nightingale's Song. Within 20s after unleashing his Elemental Burst, Illuga can gain a maximum of 15 additional stacks of Nightingale's Song this way. When all stacks of Nightingale's Song have been consumed, or when the state's duration ends, the Haunted Night's Oriole-Song effect will end.
After unleashing Elemental Skill Dawnbearing Songbird or Elemental Burst Shadowless Reflection, other nearby party members will gain the Lightkeeper's Oath effect for 20s: For Geo DMG dealt to opponents, CRIT Rate increases by 5% and CRIT DMG increases by 10%. Moonsign: Ascendant Gleam Party members affected by the Lightkeeper's Oath effect have their Elemental Mastery increased by 50.
Nightingale's Song's effects are enhanced: When there are 1/2/3 Hydro or Geo characters in the party, Nightingale's Song will further increase DMG. Increase in DMG is equal to 7%/14%/24% of Illuga's Elemental Mastery. If this aforementioned DMG is inflicted by a Lunar-Crystallize reaction, increase in DMG is equal to 48%/96%/160% of Illuga's Elemental Mastery.
At night (18:00 – 06:00), your party members gain the Swift Stride effect: Movement SPD increased by 10%. Does 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
When Illuga is on the field, he will regain 12 Elemental Energy after a Geo-related Reaction is triggered. This effect can be triggered once every 15s.
Is it worth getting?
Meaningful upgrade worth targeting. This ranking was done in a team with Zibai, Illuga, Columbina, and a general Geo character.
When Elemental Burst Shadowless Reflection's Haunted Night's Oriole-Song effect is active, for every 7 stacks of Nightingale's Song consumed, Illuga will summon Aedon, dealing a single instance of Geo DMG to 1 nearby opponent. The DMG dealt is based on 400% of Illuga's Elemental Mastery and 200% of his DEF. This DMG is considered Elemental Burst DMG.
Is it worth getting?
Meaningful upgrade worth targeting. This ranking was done in a team with Zibai, Illuga, Columbina, and a general Geo character.
Increases the Level of Elemental Burst Shadowless Reflection by 3. Maximum upgrade level is 15.
Is it worth getting?
Large power spike strongly recommended if you play this character regularly.
When Elemental Burst Shadowless Reflection's Haunted Night's Oriole-Song effect is active, nearby active party members will have their DEF increased by 200.
Is it worth getting?
Large power spike strongly recommended if you play this character regularly.
Increases the Level of Elemental Skill Dawnbearing Songbird by 3. Maximum upgrade level is 15.
Is it worth getting?
Large power spike strongly recommended if you play this character regularly.
Enhances the Lightkeeper's Oath effect of the Ascension Talent Torchforger's Covenant: For Geo DMG dealt to opponents, CRIT Rate is increased by 10%, CRIT DMG is increased by 30%. Moonsign: 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."
Is it worth getting?
Large power spike strongly recommended if you play this character regularly.
C0 Illuga is fully functional. Strong support for Lunar-Crystalize teams (specifically Zibai)
Alternatives to Illuga
Not sure Illuga is right for you? Compare against other characters to find your best pull.

Another Geo Shield Support. Compare their weapon and artifact requirements, team synergies, and playstyle to decide which suits your roster better.

Another Geo Support. Compare their weapon and artifact requirements, team synergies, and playstyle to decide which suits your roster better.

Another Geo Support. Compare their weapon and artifact requirements, team synergies, and playstyle to decide which suits your roster better.

Another Geo Support. Compare their weapon and artifact requirements, team synergies, and playstyle to decide which suits your roster better.


