Illuga
★★★★

Illuga Build

Geo Polearm Elemental Mastery

Member of the investigation squad, the Nightmare Orioles. The youngest squad leader among the Lightkeepers.

Best build for Illuga

Sub-DPS / Support

4-star Geo Sub-DPS and support with Elemental Mastery as a secondary stat, which strengthens Crystallize for more durable team shields. Fits well as a flex slot in Geo teams or as an off-field reaction enabler alongside Zibai.

Best weapons for Illuga
Kitain Cross Spear
Kitain Cross Spear
Best in Slot (BiS)
Alternatives
Best artifacts for Illuga
Best option 4× Archaic Petra
Best support Geo option. Picking up Crystallize shards gives +35% elemental damage to the whole team for 10s.
4× Tenacity of the Millelith
Defensive support alternative. Increases the active character's HP and shield strength after using Elemental Skill.
2× Archaic Petra + 2× Tenacity of the Millelith
Balanced mix of Geo damage and defensive utility for the team.
Recommended artifact stats
Sands Elemental Mastery / DEF%
Goblet Geo DMG Bonus / Elemental Mastery
Circlet CRIT Rate / CRIT DMG
Substat priority
1. Elemental Mastery2. CRIT Rate3. CRIT DMG4. Energy Recharge5. DEF%
Tips

Illuga is the companion 4-star of the patch, designed to complement Zibai in Geo teams. His unusual Elemental Mastery secondary stat suggests that Lunar Crystallize has deeper mechanics than standard Crystallize. Preliminary build.

Best teams with Illuga
Illuga Support with Zibai
zibaiillugazhonglifurina

Illuga as Geo support alongside Zibai as main DPS. Zhongli provides shielding and Furina amplifies damage.

Illuga Support for Navia
naviaillugabennettzhongli

Illuga provides constant Crystallize for Navia's shields and picks up shards for the Archaic Petra buff.

Frequently asked questions about Illuga

What is the best build for Illuga?

The best build for Illuga is as a Sub-DPS / Support. 4-star Geo Sub-DPS and support with Elemental Mastery as a secondary stat, which strengthens Crystallize for more durable team shields. Fits well as a flex slot in Geo teams or as an off-field reaction enabler alongside Zibai.

Which artifacts to use with Illuga?

The best artifact set for Illuga is 4× Archaic Petra. Best support Geo option. Picking up Crystallize shards gives +35% elemental damage to the whole team for 10s. As an alternative, 4× Tenacity of the Millelith also works well.

What is the best weapon for Illuga?

The best weapon for Illuga is Kitain Cross Spear. Recommended alternatives include: Favonius Lance, Dragon's Bane, Moonpiercer, Prototype Starglitter.

How to play Illuga?

Illuga is the companion 4-star of the patch, designed to complement Zibai in Geo teams. His unusual Elemental Mastery secondary stat suggests that Lunar Crystallize has deeper mechanics than standard Crystallize. Preliminary build.

Base stats

LevelHPATKDEF
11,0031668
202,57741175
404,90078333
607,632122519
8010,187163693
9011,465183780

Ascension Materials

Phase 1 20,000 mora
  • Prithiva Topaz Sliver ×1 Prithiva Topaz Sliver
  • Pine Amber ×3 Pine Amber
  • Broken Drive Shaft ×3 Broken Drive Shaft
Phase 2 40,000 mora
  • Prithiva Topaz Fragment ×3 Prithiva Topaz Fragment
  • Cyclic Military Kuuvahki Core ×2 Cyclic Military Kuuvahki Core
  • Pine Amber ×10 Pine Amber
  • Broken Drive Shaft ×15 Broken Drive Shaft
Phase 3 60,000 mora
  • Prithiva Topaz Fragment ×6 Prithiva Topaz Fragment
  • Cyclic Military Kuuvahki Core ×4 Cyclic Military Kuuvahki Core
  • Pine Amber ×20 Pine Amber
  • Reinforced Drive Shaft ×12 Reinforced Drive Shaft
Phase 4 80,000 mora
  • Prithiva Topaz Chunk ×3 Prithiva Topaz Chunk
  • Cyclic Military Kuuvahki Core ×8 Cyclic Military Kuuvahki Core
  • Pine Amber ×30 Pine Amber
  • Reinforced Drive Shaft ×18 Reinforced Drive Shaft
Phase 5 100,000 mora
  • Prithiva Topaz Chunk ×6 Prithiva Topaz Chunk
  • Cyclic Military Kuuvahki Core ×12 Cyclic Military Kuuvahki Core
  • Pine Amber ×45 Pine Amber
  • Precision Drive Shaft ×12 Precision Drive Shaft
Phase 6 120,000 mora
  • Prithiva Topaz Gemstone ×6 Prithiva Topaz Gemstone
  • Cyclic Military Kuuvahki Core ×20 Cyclic Military Kuuvahki Core
  • Pine Amber ×60 Pine Amber
  • Precision Drive Shaft ×24 Precision Drive Shaft

Talents

Normal Attack
Oathkeeper's Spear

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.

Level123456789101112131415
1-Hit DMG47.4%51.2%55.1%60.6%64.4%68.8%74.9%81.0%87.0%93.6%100.2%106.8%113.5%120.1%126.7%
2-Hit DMG48.5%52.5%56.4%62.1%66.0%70.5%76.7%82.9%89.2%95.9%102.7%109.5%116.2%123.0%129.8%
3-Hit DMG31.4%+31.4%34.0%+34.0%36.5%+36.5%40.2%+40.2%42.8%+42.8%45.7%+45.7%49.7%+49.7%53.7%+53.7%57.7%+57.7%62.1%+62.1%66.5%+66.5%70.9%+70.9%75.3%+75.3%79.7%+79.7%84.1%+84.1%
4-Hit DMG76.3%82.5%88.7%97.6%103.8%110.9%120.6%130.4%140.1%150.8%161.4%172.1%182.7%193.4%204.0%
Charged Attack DMG111.0%120.1%129.1%142.0%151.0%161.4%175.6%189.8%204.0%219.5%235.0%250.5%265.9%281.4%296.9%
Charged Attack Stamina Cost25.025.025.025.025.025.025.025.025.025.025.025.025.025.025.0
Plunge DMG63.9%69.1%74.3%81.8%87.0%92.9%101.1%109.3%117.5%126.4%135.3%144.2%153.1%162.1%171.0%
Low/High Plunge DMG127.8%/159.7%138.2%/172.7%148.6%/185.7%163.5%/204.2%173.9%/217.2%185.8%/232.1%202.2%/252.5%218.5%/272.9%234.9%/293.4%252.7%/315.6%270.5%/337.9%288.4%/360.2%306.2%/382.5%324.1%/404.8%341.9%/427.0%
Elemental Skill
Dawnbearing Songbird

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.

Level123456789101112131415
Press DMG482.6% Elemental Mastery+241.3% DEF518.8% Elemental Mastery+259.4% DEF554.9% Elemental Mastery+277.5% DEF603.2% Elemental Mastery+301.6% DEF639.4% Elemental Mastery+319.7% DEF675.6% Elemental Mastery+337.8% DEF723.8% Elemental Mastery+361.9% DEF772.1% Elemental Mastery+386.0% DEF820.4% Elemental Mastery+410.2% DEF868.6% Elemental Mastery+434.3% DEF916.9% Elemental Mastery+458.4% DEF965.1% Elemental Mastery+482.6% DEF1025.4% Elemental Mastery+512.7% DEF1085.8% Elemental Mastery+542.9% DEF1146.1% Elemental Mastery+573.0% DEF
Hold DMG603.2% Elemental Mastery+301.6% DEF648.4% Elemental Mastery+324.2% DEF693.7% Elemental Mastery+346.8% DEF754.0% Elemental Mastery+377.0% DEF799.2% Elemental Mastery+399.6% DEF844.5% Elemental Mastery+422.2% DEF904.8% Elemental Mastery+452.4% DEF965.1% Elemental Mastery+482.6% DEF1025.4% Elemental Mastery+512.7% DEF1085.8% Elemental Mastery+542.9% DEF1146.1% Elemental Mastery+573.0% DEF1206.4% Elemental Mastery+603.2% DEF1281.8% Elemental Mastery+640.9% DEF1357.2% Elemental Mastery+678.6% DEF1432.6% Elemental Mastery+716.3% DEF
CD15.0s15.0s15.0s15.0s15.0s15.0s15.0s15.0s15.0s15.0s15.0s15.0s15.0s15.0s15.0s
Elemental Burst
Shadowless Reflection

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.

Level123456789101112131415
Skill DMG827.2% Elemental Mastery+413.6% DEF889.2% Elemental Mastery+444.6% DEF951.3% Elemental Mastery+475.6% DEF1034.0% Elemental Mastery+517.0% DEF1096.0% Elemental Mastery+548.0% DEF1158.1% Elemental Mastery+579.0% DEF1240.8% Elemental Mastery+620.4% DEF1323.5% Elemental Mastery+661.8% DEF1406.2% Elemental Mastery+703.1% DEF1489.0% Elemental Mastery+744.5% DEF1571.7% Elemental Mastery+785.8% DEF1654.4% Elemental Mastery+827.2% DEF1757.8% Elemental Mastery+878.9% DEF1861.2% Elemental Mastery+930.6% DEF1964.6% Elemental Mastery+982.3% DEF
Geo DMG Bonus33.6% Elemental Mastery36.1% Elemental Mastery38.6% Elemental Mastery42.0% Elemental Mastery44.5% Elemental Mastery47.0% Elemental Mastery50.4% Elemental Mastery53.8% Elemental Mastery57.1% Elemental Mastery60.5% Elemental Mastery63.8% Elemental Mastery67.2% Elemental Mastery71.4% Elemental Mastery75.6% Elemental Mastery79.8% Elemental Mastery
Lunar-Crystallize Reaction DMG Bonus225.9% Elemental Mastery242.9% Elemental Mastery259.8% Elemental Mastery282.4% Elemental Mastery299.3% Elemental Mastery316.3% Elemental Mastery338.9% Elemental Mastery361.5% Elemental Mastery384.1% Elemental Mastery406.7% Elemental Mastery429.2% Elemental Mastery451.8% Elemental Mastery480.1% Elemental Mastery508.3% Elemental Mastery536.6% Elemental Mastery
Nightingale's Song Stacks Gained from Elemental Burst212121212121212121212121212121
Nightingale's Song Stacks Gained from Geo Constructs 5 Per Geo Construct 5 Per Geo Construct 5 Per Geo Construct 5 Per Geo Construct 5 Per Geo Construct 5 Per Geo Construct 5 Per Geo Construct 5 Per Geo Construct 5 Per Geo Construct 5 Per Geo Construct 5 Per Geo Construct 5 Per Geo Construct 5 Per Geo Construct 5 Per Geo Construct 5 Per Geo Construct
Duration20.0s20.0s20.0s20.0s20.0s20.0s20.0s20.0s20.0s20.0s20.0s20.0s20.0s20.0s20.0s
CD15.0s15.0s15.0s15.0s15.0s15.0s15.0s15.0s15.0s15.0s15.0s15.0s15.0s15.0s15.0s
Energy Cost606060606060606060606060606060

Passive talents

Torchforger's Covenant

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.

Demonhunter's Dusk

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.

Moonsign Benediction: Unwithering in Winter

When Illuga is in the party, the party's Moonsign will increase by 1 level.

Night Warden's Stride

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

C1
Vigilant Sentinel

After Illuga triggers a Geo-related Reaction on the field, he will regain 12 Elemental Energy. This effect can be triggered at most once every 15s.

C2
Elk With Fanged Antlers

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.

C3
Earthshaking Maw

Increases the Level of Elemental Burst Shadowless Reflection by 3.

Maximum upgrade level is 15.

C4
Solarhunting Wolf

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.

C5
Hurricane Steed

Increases the Level of Elemental Skill Dawnbearing Songbird by 3.

Maximum upgrade level is 15.

C6
Nightmare Orioles

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."