Doom Slayer, Bringer of Doom

When Doom Slayer, Bringer of Doom, attacks this turn, add a +1/+1 counter on Doom Slayer, Bringer of Doom for each time the target opponent sacrifices a creature, shuffles their deck or draws a new card.

Your Graveyard and Exile cards return to your hand, and you gain 5 life.

{8}{r}: Cruicle of Death: the target opponent sacrifices 3 creatures, discards their hand and uses their graveyard and exile cards while losing 5 life and you gain 5 life.