Switch Person

You touch a willing creature with Multiple Person Disorder, and speak the name of one of the persons they can assume. Over the course of a long rest, they magically transform into that person, the end of which culminates in a cloud enveloping the creature, from which emerges the assuming person. The cloud takes on characteristics of that person (e.g. White for Good, feathers for Aarakocra, etc.) A creature can undergoing the transformation can choose to end the transformation at any time before the long rest ends. If the long rest is interrupted, the transformation process ends and the creature does not transform.