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. If it has
an effect that would trigger upon turning face up,
it triggers up to two times.
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.
"Behind the mirror, the reflection is real."