Material Thickness: Heavy-duty 8mm reinforced sides | 5mm face panels
If you do, gains trample and gets +X/+X until end of turn, where X is its power
and Lightning Axe all let you discard whatever card type you want, so you should always have a land and a creature in the graveyard after casting Mindwrack Demon, and then you just need any other two
Cards you might have discarded with Jace, Vryns Prodigys draw and discards effect, or maybe a removal spell you cast on a bothersome early creature coming back to take out a mid-game threat
It already passively shapes up your hand, but it enables so many things from discard decks to madness/mayhem to cast-from-exile strategies that just want another payoff for playing their game
This makes permanently dealing with a Timothar players Vampires a huge headache, as they can effectively transform into bats instead of dying