Gor Muldrak, Amphinologist There are a few reasons Gor Muldrak, Amphinologist is a fun card to play against
The monsters you summon also have their effects negated, and you cannot declare attacks the turn you activated this card, except with Machine Monsters
The card synergizes well in any Food or lifegain decks that can reliably gain life each turn in a Commander turn cycle
Also, they get a +1/+1 counter on them whenever another creature enters the battlefield under your control
On Wednesday, I got together a pod of six and drafted this deck: The cantrips functioned perfectly in the deck by which I mean not that they were overpowered, but that they made the games more fun
Both the players playing the combo (which is easy to tutor for also) and their local groups would get tired of it quickly enough that it would go out of favor pretty quickly