Coveted Prize (ZNR) / Foil

This spell costs 1 less to cast for each creature in your part. (Your party consists of up to one each of Cleric, Rogue, Warrior, and Wizard.)
Search your library for a card, put it into your hand, then shuffle your library. If you have a full party, you may cast a spell with converted mana cost 4 or less from your hand without paying its mana cost.