Deathmist Raptor
{1}{G}{G}
Creature -- Dinosaur Beast
3/3
Deathtouch
Whenever a permanent you control is turned face up, you may return ~this~ from your graveyard to the battlefield face up or face down.
Megamorph {4}{G} (You may cast ~this~ face down as a 2/2 creature for {3}. Turn it face up any time for its megamorph cost and put a +1/+1 counter on it.)
Mastery of the Unseen
{1}{W}
Enchantment
Whenever a permanent you control is turned face up, you gain 1 life for each creature you control.
{3}{W}: Manifest the top card of your library. (Put it onto the battlefield face down as a 2/2 creature. Turn it face up any time for its mana cost if it's a creature card.)
Secret Plans
{G}{U}
Enchantment
Face-down creatures you control get +0/+1.
Whenever a permanent you control is turned face up, draw a card.