Fistyar, Arcane Scholar

Party - If you control at least three creatures with different types, instant and sorcery spells you cast cost {u}{r} less to cast.
{u}{r},{t}: Target instant or sorcery card in your graveyard gains flashback until end of turn. The flashback cost is equal to its mana cost. (You may cast that card from your graveyard for its flashback cost. Then exile it.)