MTG >Combos >Phyrexian Altar +Lesser Masticore +Grumgully, the Generous +

Sacrifice Lesser Masticore with Phyrexian Altar to add one mana Persist will trigger, returns Lesser Masticore to the battlefield with a -1/-1 counter Grumgully's ability will trigger, put a +1/+1 counter on Lesser Masticore +1/+1 and -1/-1 counters nullify each other. Repeat process for infinite mana