Agyrem (Planechase Anthology)

Whenever a white creature is put into a graveyard from the battlefield, return it to the battlefield under its owner's control at the beginning of the next end step. Whenever a nonwhite creature is put into a graveyard from the battlefield, return it to its owner's hand at the beginning of the next end step. Whenever you roll Chaos, creatures can't attack you until a player planeswalks.