Whenever you cast an artifact spell, you may draw a card. If you do, discard a card.

{T}, Sacrifice an artifact: Draw a card.

Affinity for artifacts (This spell costs {1} less to cast for each artifact you control.) Flying When this creature enters, draw two cards.

As this artifact enters, choose artifact, creature, enchantment, instant, or sorcery. Spells you cast of the chosen type cost {1} less to cast.

Artifact spells you cast cost {1} less to cast.

Artifact spells you cast cost {1} less to cast.

Metalcraft — {T}: Add one mana of any color. Activate only if you control three or more artifacts.

Flying When this creature dies, return another target artifact card from your graveyard to your hand.