Goblin Welder [Commander 2014] Wall lands tapped for mana produce

lands tapped for mana produce mana of the chosen color instead of any other color

Set: Champions of Kamigawa Type: Legendary Artifact — Equipment Rarity: Rare Cost: {3} Equipped creature gets +3/+1

Prevent all combat damage that would be dealt to and dealt by that creature this turn

Remove a mining counter from Gemstone Mine: Add one mana of any color

untap Time Vault

Goblin Welder [Commander 2014] Wall lands tapped for mana produceSet: Commander 2014 Type: Creature Goblin Artificer Rarity: Rare Cost: {R} {T}: Choose target artifact a player controls and target artifact card in that player's graveyard. If both targets are still legal as this ability resolves, that player simultaneously sacrifices the artifact and returns the artifact card to the battlefield. "I wrecked your metal guy, boss. But look! I made you an ashtray."