Chiara, the Stormsinger

+1: Reveal the top card of your library. If it's an instant or sorcery, you may put it into your hand.
-2: Reveal a card from your hand. Chiara, the Stormsinger deals damage to any target equal to that card's converted mana cost.
-7: You get an emblem with "Whenver you cast an instant or sorcery spell, exile it and return it to your hand at the beginning of the next end step."