no maximum hand size cards mtg Price of Knowledge | Commander 2013 | Commander Each opponent puts a number of cards equal to the number of cards in their hand from the top of their library into their graveyard Venser's Journal · Commander 2021

I would use this card especially against control decks

At first blush, at least, Prototype has the hallmark of a solid keyword in that its reasonably simple to understand at a glance while simultaneously expanding the branches of your in-game decision tree in interesting ways

The double-faced cards from Zendikar Rising like Silundi Vision are already pretty amazing but get much more value in this deck, since if you play them as lands early in the game, you can always pick them up later with a Moonfolk activation if you need the spell side

Illustrated by Tomasz Jedruszek Standard Not Legal Alchemy Not Legal Pioneer Not Legal Historic Not Legal Modern Legal Brawl Not Legal Legacy Legal Comp

Steamflogger Boss itself would later be reprinted in the set as well (with the normal card frame design)