One of my players wants to play a wookie with multiple personalities. The story thus far is that he was exiled from his home because he of a betryal. The twist is that one of his ppersonalities is who betrayed human because he is basically a homicidal maniac.
What i would like to happen is when his obligation hits, have some sort of trigger that if it happens he loses control and his other personality takes over throwing him into a blind rage. Any suggestions on what the trigger should be and how long the rages should last?