Rennala, Lunar Queen

Great Rune of the Unborn — {w}{u}{b},{t}: Sacrifice a creature. Return target creature from your graveyard to the battlefield under your control. During your next upkeep, it returns to your hand.
Lunar Sorcery — {2}{w/u}{u}: Exile Rennala, then return her to the battlefield. Then, Rennala deals damage to target tapped creature or opponent equal to the number of instant, sorcery, and enchantment spells you have cast this turn.