Giselle has an upbeat and cheerful personality and likes to make silly faces and snark at her friends. This obscures her true nature as a ruthless and cruel fighter who has absolutely no remorse when using her power. She also has no qualms about murdering her own teammates to gain access to their abilities or gleefully humiliate and abuse them, she also does this to her zombies. Giselle's Schrift allows her to convert people into her own zombies by spraying her blood upon them.