Scarlet Witch, Chaos Incarnate

Flying, hexproof

Chaos Magic — Whenever you cast a noncreature spell, choose one at random:
• Draw a card.
• Deal 3 damage to any target.
• Target opponent mills 3 cards.
Instant and sorcery spells in your graveyard have Flashback. The flashback cost is equal to it's mana cost plus {2}.