Might Guy, the Blue Beast

First strike, flying, trample, menace, haste
Might Guy, the Blue Beast can't be countered.
At the beginning of your end step, put
Might Guy, the Blue Beast into its owner's
library third from the top unless you pay {p/u}{p/u}{p/u}.
{x}{p/u}{p/u}{p/u}, {t}: Might Guy, the Blue Beast deals X damage to up to three targets.