La Signora is a powerful weekly boss in Genshin Impact. As the Eighth of the Fatui Harbingers, she commands both Cryo and Pyro elements during combat. Players face her in the Trounce Domain "Narukami Island: Tenshukaku" after completing part of the Inazuma Archon Quest.
Key Details
Location: Narukami Island – Tenshukaku (Inazuma)
Elements: Phase 1 – Cryo, Phase 2 – Pyro
Unlock Requirement: Complete Archon Quest – Chapter II: Act III “Omnipresence Over Mortals”
Recommended Adventure Rank: 35+
Resin Cost: 30 (first three claims per week), then 60
Battle Mechanics
Fight has two elemental phases: Cryo first, then Pyro
During Cryo phase, applies Sheer Cold – bring a heat source or shield
In Pyro phase, burns the arena – use healers and stay mobile
Has AoE attacks, homing icicles, and fire tornadoes
Shields and elemental resistance buffs help reduce damage
A quick explainer video below:
Video highlights
Join a co-op party.
Bring a support character or Furina.
Heal the team and catch fireflies.
Dps fight.
Tips for Victory
Bring a shielder (Zhongli, Diona) or healer (Bennett, Kokomi)
Use Cryo-resistant potions in Phase 1 and Pyro-resistant in Phase 2
Time your bursts between her attack cooldowns
Keep moving to avoid homing projectiles and zone damage
Utilize food buffs to boost survivability
Rewards
Boss Talent Materials: Ashen Heart, Molten Moment, Hellfire Butterfly
