3 Realm Seekers In a very real way, this could have been the pseudo-replacement for Primeval Titan or Sylvan Primordial in your decks and hearts
That activated ability can be absolutely criminal, whether you use it to finish someone off or just to bring them down a peg
If The Grand Caluctron in on the battlefield and my X is in my opponent's hand, can I cast cards in their program
So are the mechanics with map tokens, double-faced cards, and discover
I've even played Maze's End in Modern, which is fun but still fruitless (By the way, Wizards, Maze's End in War of the Spark or we riot, and no I don't care about the Vorthos flavor complaints
Giving the creature +1/+1 is great too since, the lingering effects of Maximum Overdrive help scale your creatures higher and higher