MTG >Combos >Walking Ballista +Phyrexian Devourer +Patchwork Crawler +

Exile Walking Ballista and Phyrexian Devourer with Patchwork Crawler Activate Phyrexian's Devour ability to exile cards from your deck and put +1/+1 counters on Patchwork Crawler equal to the cost of the exiled cards Remove a +1/+1 counter from Patchwork Crawler to deal 1 damage to opponent Repeat the process for infinite damage.