Then you can spend three and draw 7 cards, exiled by his effect, then spend another one and pay 7 life to draw them from exile
The flexibility to create tokens on your turn, leave them up as blockers, then cast this at your opponent's end step for to draw a bunch of cards is so good
While the gauntlet is balanced in a way that there is no clearly defined best deck, you should take something that you enjoy playing first and foremost, but something thats tried and true is never a bad thing either
However, some of them are amazing monsters that require intricate setup to make use of their effects, and one of the best cards of this type is Dinomorphia Rexterm
I had the most amount of fun with the least amount of stress (and hits to my bank account)
It's an impressive conglomeration of horrifying ideas: the mangled corpse of a dead girl patched together with a massive robot, then possessed by a bloodthirsty ghost