Requirements: Rank: Seasoned, savage/Arcane Trickster Edge

Invisible Thief: Once per day, as a free action, the character may cast invisibility for a base cost of 1 Power Point. No arcane skill roll is required, and it's cast as if with a raise. The trickster may use other Power Modifiers or maintain the spell with her own Power Points as usual.

This Edge doesn't grant the trickster the invisibility spell; she must have it on her own.