At the beginning of your end step, create X Treasure tokens, where X is the number of creatures your opponents controlled that died this turn.

{t}, Sacrifice a Treasure: Draw a card. You lose 1 life.

{t}, Sacrifice three Treasures: Creatures you control gain indestructible until end of turn.

{t}, Sacrifice five Treasures: Exile target creature or planeswalker an opponent controls.