Raven, Revered Trickster

Indestructible
{t}: Manifest a card from your hand.
{1}{r/g}{g/w}: Target player 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.)