Renowned Weaponsmith

: Add . Spend this mana only to activate abilities of artifacts.

Other blue creatures you control get +1/+1.

: Target artifact creature becomes blue until end of turn.

Tap an untapped blue creature you control: Add . Spend this mana only to cast artifact spells or activate abilities of artifacts.

: Add . Spend this mana only to cast artifact spells or activate abilities of artifacts.

Equipped creatures you control have flying and haste.

: Add . Spend this mana only to cast a colorless spell or to activate an ability.

: Add two mana of any one color. Spend this mana only to cast artifact spells or activate abilities of artifacts.

Vigilance

, : Draw a card, then discard a card.

Whenever you discard one or more artifact cards, create a tapped Powerstone token. This ability triggers only once each turn. (The token is an artifact with ": Add . This mana can't be spent to cast a nonartifact spell.")