Techu, Scribe of the Ages

Flying, Indestructible
As longs as you have five or more noncreature, nonland cards in your graveyard, during each of your turns you may cast a sorcery card from your graveyard and during each of your opponent's turns you may cast an instant card from your graveyard. If a spell cast this way would be put into a graveyard, exile it instead.