Jattu, Guardian of the Heart

Battalion - Whenever Jattu, Guardian of the Heart and at least two other creatures attack, exile the top card of your library. If it's a instant or sorcery card, you may cast it without paying its mana cost. Otherwise, put it into your graveyard.
Heroic - Whenever you cast a spell that targets Jattu, Guardian of the Heart, you may return an instant or sorcery card from your graveyard to your hand.