Illuga Profile, Talents and Constellations
Illuga is a 4-star Geo Polearm character in Genshin Impact. Our Illuga build guide will focus on Illuga's best weapons, best artifacts, skills, constellations and Illuga's best teams.
Introduction — Illuga
Illuga is a 4-Star Geo Polearm Character in Genshin Impact. Our Illuga guide and best builds cover everything you need to know about Illuga's best builds, including skills, artifacts, team compositions and more. To learn more about Illuga, use the tabs above to switch to our build information for Illuga or their team compositions.
Ascension Stat & Materials for Illuga
Illuga gains Elemental Mastery each time he ascends, totalling 96 EM at level 90. The total Ascension material costs are listed below:
| Source | Quantity |
|---|---|
| Mora | 420,000 Mora |
| Boss Material | 46x Cyclic Military Kuuvahki Core |
| Ascension Material | |
| Local Specialty | 168x Pine Amber |
| Enhancement Material |
|
Talent Materials for Illuga
Listed below are all the materials required to raise a single talent of Illuga's to level 10. Please check our Illuga build guide for recommendations on talent priorities.
| Source | Quantity |
|---|---|
| Mora | 1,625,500 Mora |
| Special Material | 1x Crown of Insight |
| Boss Material | 6x Eroded Horn |
| Domain Material |
|
| Enhancement Material |
|
Illuga's Talents
Normal Attack
Performs up to 4 consecutive spear strikes.
Charged Attack
Consumes a certain amount of Stamina to lunge forward, dealing damage to opponents along the way.
Plunging Attack
Plunges from mid-air to strike the ground below, damaging opponents along the path and dealing AoE DMG upon impact.
Summons the trusty messenger bird, "Gale." Different effects are produced depending on whether the skill is Tapped or Held.
Tap
Gale dashes towards enemies in front, dealing Geo DMG to enemies it comes into contact with.
Hold to enter aiming mode, and command Gale 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. Illuga can gain a maximum of 15 additional stacks of Nightingale's Song this way for up to 20s after unleashing his Elemental Burst.
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.
The effect gained after Illuga unleashes his Elemental Burst Shadowless Reflection. It can increase the Geo DMG inflicted by current active characters.
Illuga's Ascension Passive Talents
After unleashing Elemental Skill Dawnbearing Songbird or Elemental Burst Shadowless Reflection, nearby party members will gain the Lightkeeper's Oath effect for 20s: Geo DMG dealt to opponents and CRIT Rate increase by 5%, CRIT DMG increases by 10%.
Moonsign: Ascendant Gleam
When party members are affected by the Lightkeeper's Oath effect, Elemental Mastery is 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 60%/120%/200% 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.
When Illuga is in the party, the party's Moonsign will increase by 1 level.
Illuga's 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.
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 Gale, 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.
Increases the Level of Elemental Burst Shadowless Reflection by 3.
Maximum upgrade level is 15.
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.
Increases the Level of Elemental Skill Dawnbearing Songbird by 3.
Maximum upgrade level is 15.
Enhances the Lightkeeper's Oath effect of the Passive 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.
Requires the Passive Talent Torchforger's Covenant.
Build Guide for Illuga
To learn all about Illuga's best weapons, artifacts and builds, check our dedicated Illuga build guide below:
Changelog
- 11 Dec. 2025: Illuga guide released.
In The Same Category
This guide has been written by Shikhu (Discord - Shikhu), an avid Genshin Impact player who has been exploring Teyvat since the game has launched. He has experienced all the game has to offer from building his favorite characters, exploring the world to clearing Spiral Abyss each rotation. His favorite character being his C6 Furina.