Fun card
Now add in Swords to Plowshares, Squirrel Nest, Altar of Dementia, Spiritmonger, Silent Arbiter, Mirari's Wake, Victimize, Ill-Gotten Gains, Stifle, Brainstorm, Rout, Pristine Angel, and even Edric, Spymaster of Trest
Any opponent with more than thirteen creatures will be able to shrug off this otherwise potent effect
Outside of that, cards like Oblivion Stone can be okay, but the board wipe becomes symmetrical without adding Fate counters to permanents you control
Is Coat of Arms appropriate for your theme or is it too winmore for your taste
My favorite aspect of Magic is an integral part of all this: the game runs on an intuitive rules engine