Undead Gravedigger

Flash {2}{w}: You gain 3 Life.
During each of your turns, you may play up to one permanent card of each permanent type from your graveyard.(If a card has multiple permanent types, choose one as you play it.)
Discard three cards: Exile [__]. Return it to the battlefield tapped under its owner's control at the beginning of the next end step.
If a creature dying causes a triggered ability of a permanent you control to trigger, that abilities triggers an additional time.