One of Formless Energy

Hexproof, Prowess 2 (Whenever you cast a noncreature spell, this creature gets +2/+2 until end of
turn.)
At the beginning of each player's end step, exile
One of Formless Energy and lose 8 life if you
didn't cast a noncreature spell this turn.
Pay 4 life: Return target noncreature card from
your graveyard to your hand.
I can almost see its face. Each spell I cast sharpens its features, yet it fades with even a brief pause.
-Alla Nier