Praepotus, Guide of Death

Flying, deathtouch, lifelink
If a card would be put into an opponent's
graveyard from the battlefield, exile it instead.
{t}, Return six cards a player owns in exile to
their graveyard: Destroy target non-land
permanent that player controls.
Praepotus guided the souls of the dead to the tree of creation but his ambitions grew too great.