Whenever a creature you control with an impostor counter on it dies, exile it
Ive been harping on about playing more board wipes for longer than many of you reading this review, Im sure, but Wizards are dropping more and more sweet wipes for Commander that solve the (imaginary, pretend) issue of them being dead late, or a tempo loss to play
It's a serialized version of Ragavan, Nimble Pilferer, one of the Multiverse Legends cards from the soon-to-release Magic set March of the Machine (This little monkey was just banned in Historic)
When this enchantment leaves the battlefield, you lose the game
And to round things out, Final Fantasy has an immensely deep place within gamer culture, and everything from the series' graphic design to the character designs to the musical scores has lent it a certain artistic prestige