Ciel, Sylph of Life

+2: Ciel, Sylph of Life becomes an X/X creature with lifelink until the end of your turn, where X is her current loyalty
-4: Exile target creature from any graveyard, then cast it without paying its mana cost and suspend it for X, where X is the converted mana cost.
-12: Gain an Emblem with "Ciel, Sylph of Life, has +X/+X, indestructible, and hexproof. X is your devotion to white."