Reality Shift

Exile target creature. Its controller manifests the
top card of their library. (That player puts the top
card of their library onto the battlefield face down as a
2/2 creature. If it's a creature card, it can be turned
face up any time for its mana cost.)
—
Time is a river, where even the tiniest changes seen
can lead to a cascade of effects downstream.
-Zecora