MTG >Combos >Cacophodon +Heroic Intervention +Phyrexian Altar +Acorn Catapult +

With all cards in play, cast Heroic Intervention to make Cacophodon indestructible. Activate Acorn Catapult's ability, deal 1 damage to Cacophodon to create a 1/1 token Cacophodon's ability will trigger, untap Acorn Catapult Sacrifice the token with Phyrexian Altar to add one mana. Repeat process for infinite ETB/Death Trigger.