Legion and the Engineer cannot both be in play at the start of the game. If the Engineer creates Legion, most players (including all evil players) become evil Legion.
A Pit-Hag cannot create a Heretic.
If a character would be eliminated due to the Virgin's ability, retire the Virgin instead.
If the good team wins with a Heretic in play: eliminate the Heretic.
If Legion is the last character to die due to execution in a game, and loses as a result: Legion is eliminated.