Also, her illusions can put enemies in a coma-like state, by telepathically trapping her enemies' minds in a maze from which there's no escape. This technique, when combined with a psychic chaff that Regan is also capable of emitting, is an effective tool against even the most powerful of telepaths: as Regan was able to imprison a sleeping Emma Frost's mind using such a method. The White Queen found that her cognition was too interrupted to even understand what was happening, much less summon her own psionic abilities to fight back. Emma was freed, however, by the appearance of Jean Grey, who broke the psi-chaff, utilizing her emblematic Phoenix raptor.