MTG >Combos >Gravecrawler +Phyrexian Altar +Necroduality +

You must have another Zombie in play for this combo to work. Sacrifice Gravecrawler with Phyrexian Altar to add one black mana Pay one black mana to cast Gravecrawler from your graveyard Necroduality's ability will trigger, create a copy of Gravecrawler Repeat the process for infinite tokens.