Tezzeret, Master of the Bridge

Creature and planeswalker spells you cast have affinity for artifacts. (They cost less to cast for each artifact you control.) [+2]: Tezzeret deals X damage to each opponent, where X is the number of artifacts you control. You gain X life. [−3]: Return target artifact card from your graveyard to your hand. [−8]: Exile the top ten cards of your library. Put all artifact cards from among them onto the battlefield.