Tilti, The Arcanist

Whenever Tilti deals damage to an opponent,
exile a card from your graveyard or the top of your library face down. (You may look at cards exiled this way.)

Whenever you cast an instant or sorcery spell, Tilti deals 1 damage to target player.
Sacrifice Tilti: Return X target cards exiled with it to your hand, where X is the amount of damage Tilti dealt to players this turn.