Margravine, Illusion Scholar

Face down creatures are 2/1 Illusions.
If a face down creature would die, exile it instead.
Until end of turn, you may cast it from exile as if
it had flash without paying its mana cost.
You may cast cards from your hand face down
for {x}, where X is its converted mana cost - 1.
{4}: Turn a face up creature you control face
down.
"The reflection is real to those behind the mirror"
- Margravine