Recommended weapons

Default proficienciesPolearmShotgun

Recommended Additional Proficiencies

• 

  Whipbladeactivate this one

  Gives +20% ATK to: Halcyon Gracefall.

• 

  Greatswordother option

  Gives +20% ATK to: Eternal Farewell.

Only one Additional Proficiency is active at a time: the first serves the main weapon, the others the backup weapons.

How Weapon Proficiency works

Melee

Wanewraith

Wanewraith - Skill Damage +48%. Signature weapon.

Best

Venial Sinscales

Venial Sinscales - Skill Intensity +40%.

Alt

Halcyon Gracefall

Halcyon Gracefall - Skill Damage +40%.

Alt

Eternal Farewell

Eternal Farewell - Morale +30%.

Alt

Ranged

Fledgling's Gleam

Signature weapon (shotgun, within her proficiency): Max Ammo +180%.

Best

Embla Inflorescence

Skill Range.

Alt

Excresduo

Skill Intensity.

Alt

Stats priority

1. 1Intensity
2. 2Vigor
3. 3ATK

Team composition

Fina

Support

Fina - Weapon DMG and PEN buffs. Direct synergy with the kit's Weapon DMG scaling.

Fushu

Support

Fushu - Skill Intensity, healing, Ultra Shields and Sanity recovery.

Geniemon

LuminelfPassive Lv. 4Best

Increases Lumino ATK for the main character and the Combat Partners by 4.8% and the stats provided by Lumino Demon Wedges prefixed with [Griffin], [Typhon], and [Covenanter] by 1.8%.

Traits

Miraculous BallbeePassive Lv. 4Alt

Increases Lumino ATK for the main character and the Combat Partners by 2.4% and the stats provided by Demon Wedges prefixed with [Phoenix] by 0.9%.

Traits

Miraculous LumiPassive Lv. 4Alt

The main character and Combat Partners gain: Lumino ATK +1.5%, Max HP +6%

Traits

Skill priority

1. 1Starfall Mode★★★★★Primary damage source - top priority to upgrade.
2. 2Poised To Strike★★★★★Works with the ultimate, increases Momentum damage buff potency.
3. 3Sunward★★★★★Mobility tool only - low upgrade priority.

Notes

Su Yi is a ranged Lumino DPS built around Starfall Mode, which consumes Sanity to generate Artificer Powder stacks. Every 40 Sanity consumed grants 1 stack of Soar (max 10 = max Morale boost). Core loop: 1. Use Sunward for rapid map traversal (Excavation/Mediation commissions). 2. Enter Starfall Mode, generate Artificer Powder. 3. Melee swing = Sword Aflash (high damage, slow), ranged shot = Stars Ashower. 4. Each powder spent = 1 Momentum stack. 5. At 50+ stacks consumed, launch a Fengshi Model (AoE). 6. The Fengshi Type III: Tracking Mode mod (slot 4) provides auto-homing - removes the aiming burden. Key synergy: Higher ranged Max Ammo = more Artificer Powder on entry = more Momentum = higher Fengshi Model damage + better Sanity restoration. Intron priority (unlock order): - I1 (★★★★★): doubles Momentum max stacks (200) + 2 stacks per powder. Massive damage boost. - I2 (★★★★★): auto-triggers Stars Ashower during Starfall, generates Momentum without powder cost. - I4 (★★★★☆): crowd control bonus, pulls enemies together on Skill DMG. - I6 (★★★★☆): PEN scaling +, launches 2 additional Fengshi Models at 20% damage each. - I3, I5: stat-only - low priority. - I7: not available. Weaknesses: Sword Aflash slow swings, full kit potential locked behind Introns (especially I1 + I2).