Signora: Two-Phase Boss Mechanics in Genshin Impact

La Signora is one of the most challenging weekly bosses in Genshin Impact due to her dual-phase elemental mechanics. She transitions between a Cryo form and a Pyro form, each featuring unique attacks, hazards and resistance patterns. Understanding how these phases work is essential for minimizing damage, preserving stamina and controlling the temperature gauges that define the fight’s difficulty. Proper team setup and elemental counterplay make the battle significantly more manageable.

Phase One: Cryo Form

In the first phase, Signora fights as the Crimson Witch’s Cryo counterpart. The arena becomes extremely cold, causing the Sheer Cold bar to rise rapidly over time. Standing in direct Cryo winds, ice fields or near her special attacks accelerates the effect, forcing players to seek warmth from flaming braziers scattered around the arena. These braziers can be extinguished by her abilities, requiring frequent reignition using Pyro attacks.

Her attacks include wide-reaching ice slashes, Cryo spirals, freezing shockwaves and homing projectiles. These moves inflict heavy Cryo damage and can freeze characters caught off-guard. Maintaining warmth and consistent movement is the key to surviving this phase. Once her HP drops to zero, she shatters her Cryo shell and transitions into her true form.

Phase One Strategy

Pyro characters significantly speed up this phase by melting her Cryo armor. Using area Pyro attacks or fast Pyro appliers keeps braziers lit and reduces Sheer Cold buildup. Characters with shields help tank unavoidable damage, while heaters in the environment prevent freezing. Strong choices include Xiangling, Bennett, Hu Tao, Klee or any Pyro catalyst user.

Phase Two: Pyro Form

After breaking her Cryo shell, Signora transforms into the Crimson Witch. The arena shifts into extreme heat, creating a Blazing Heat gauge that fills over time. Taking environmental damage becomes a major risk as the heat intensifies. Cryo butterflies appear throughout the arena and collecting them slows the buildup of the heat gauge. Failure to control temperature results in constant burning damage.

In her Pyro form, Signora attacks with explosive firestorms, tracking fire orbs, flame pillars and large AoE detonations that can overwhelm unprepared players. Her mobility also increases, making her harder to hit consistently.

Phase Two Strategy

Cryo characters excel in this phase, reducing her Pyro resistances and enabling strong reactions. Use Cryo bursts and charged attacks to both damage her and stabilize arena temperature by absorbing Cryo butterflies. Ranged characters are especially effective at avoiding her close-range explosions. Suitable units include Ganyu, Ayaka, Rosaria, Kaeya and other strong Cryo damage dealers.

Recommended Team Composition

• Phase One (Cryo Form): Pyro DPS + Pyro support + healer/shielder.
• Phase Two (Pyro Form): Cryo DPS + Cryo support + sub-DPS + defensive unit.

Teams with strong off-field supports—such as Xingqiu, Fischl or Zhongli—help stabilize both phases and mitigate unexpected damage. Electro-Charged and Melt interactions also provide reliable damage without requiring risky positioning.

Environmental Hazards

Signora’s arena temperature systems are her most dangerous mechanic. Monitoring the Cryo and Pyro gauges is just as important as dodging her attacks. Braziers and Cryo butterflies offer vital environmental cures. Players should rotate between safe zones, reposition consistently and never remain stationary during prolonged hazards.

Rewards and Drops

Defeating Signora yields weekly boss materials used for ascension and talent upgrades. She drops unique items such as the Ashen Heart, Hellfire Butterfly and Molten Moment, required for upgrading characters from Inazuma and Sumeru. Standard rewards include Dream Solvent, artifact sets, weapon billets, talent books and weekly boss resin-based materials.

Conclusion

Signora’s boss fight is a test of elemental awareness, temperature control and adaptive team-building. Her two-phase design forces players to switch strategies midway, requiring careful planning and mastery of both Cryo and Pyro counterplay. With the correct characters, environmental awareness and consistent damage output, the battle becomes far more manageable and rewarding.