Infinite death triggersInfinite creature ETBInfinite creature LTBInfinitely large creature until end of turnInfinite creature sacrifice triggers
How it works
Cast Crafty Cutpurse by paying 3.
Crafty Cutpurse enters the battlefield, causing all tokens that would be created under an opponent's control this turn to be created under your control instead.
Activate Questing Phelddagrif's first ability by paying , causing Questing Phelddagrif to get +1/+1 until end of turn and creating a 1/1 Hippo creature token.
Activate Phyrexian Altar by sacrificing the Hippo token, adding .