'Tezzeret' cards

At the beginning of combat on your turn, target artifact you control becomes an artifact creature with base power and toughness 5/5.

+1: Untap up to two target artifacts. -X: Search your library for an artifact card with mana value X or less, put it onto the battlefield, then shuffle. -5: Artifacts you control become artifact creatures with base power and toughness 5/5 until end of turn.

+1: Look at the top five cards of your library. You may reveal an artifact card from among them and put it into your hand. Put the rest on the bottom of your library in any order. -1: Target artifact becomes an artifact creature with base power and toughness 5/5. -4: Target player loses X life and you gain X life, where X is twice the number of artifacts you control.

At the beginning of your end step, search your library for a permanent card, put it onto the battlefield, then shuffle your library.

+1: Draw a card. 0: Until your next turn, target artifact you control becomes a 5/5 creature in addition to its other types. -7: Put any number of cards from your hand onto the battlefield face down. They're 5/5 artifact creatures.

+1: Reveal cards from the top of your library until you reveal an artifact card. Put that card into your hand and the rest on the bottom of your library in a random order. -3: Target opponent loses life equal to the number of artifacts you control. -8: Gain control of all artifacts and creatures target opponent controls.

Creature and planeswalker spells you cast have affinity for artifacts. (They cost {1} 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.