MTG >Combos >Ashnod's Altar +Carnival of Souls +Reassembling Skeleton +Cruel Celebrant +

Cast Reassembling Skeleton. Carnival of Souls' ability will trigger, lose 1 life and add 1 black mana Sacrifice Reassembling Skeleton with Ashnod's Altar to add two mana Cruel Celebrant's ability will trigger, the opponent loses 1 life, and you gain 1 life. Pay 1B to return Reassembling Skeleton to the battlefield and repeat the process.