Call Dragon

Spree (choose one or more additonal costs)
Od + {r}: Discard a card then draw three cards. Create a treasure token.

Ah + {r}{r}: Call Dragon deals six damage to any target.

Viing + {2}{r}{r}: Seach your library and/or graveyard for a card named Odahviing, reaveal it and put it onto the battlefield, shuffle your library.