Seraph of Spells

Prowess
{3}{w}{w}: Until end of turn you may cast an instant or sorcery from your hand with out paying its mana cost, it gains Rebound (If this spell was cast from your hand, instead of putting it into your graveyard as it resolves, exile it and, at the beginning of your next upkeep, you may cast this card from exile without paying its mana cost.)