This elegant engine relies on enchanting Wylie Duke, Atiin Hero with Lightning Prowess, granting the legendary hero a built-in tap ability that both deals damage and immediately satisfies its own trigger condition. Because tapping Wylie Duke causes you to gain life and draw a card, you naturally fuel Mind Over Matter's discard cost while replenishing your hand with every single iteration. By discarding that newly drawn card to untap Wylie Duke, you can continuously loop the tap-and-untap sequence to deal near-infinite damage and churn through your entire library.