Freddy Krueger, Nightbane

Freddy Krueger, Nightbane is unblockable.
Whenever a spell or ability you control
causes one or more of your opponents to
discard a card, you may deal 3 damage to
any creature, if that creature would be
put into a graveyard this turn, instead put
it onto the battlefield under your control at
the beginning of the next end step.