Aquestia, Of All Forms

You may have Aquestia, Of All Forms enter the battlefield as a copy of target creature or land.
{5}{u}{u}, {t}, exile a creature you control: All
nonbasic lands you control become copies of the
exiled creature. They're still lands.
{x}{g}{g}, {t}, exile a nonbasic land you control: All creatures you control have base power and
toughness X/X until end of turn.