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'{T}: Add {C}. If you control an Urza's Mine and an Urza's Tower, add {C}{C} instead.
'{T}: Add {C}. If you control an Urza's Mine and an Urza's Power-Plant, add {C}{C}{C} instead.
'{T}: Add {C}. If you control an Urza's Power-Plant and an Urza's Tower, add {C}{C} instead.
'{T}: Add {C}. If you control an Urza's Mine and an Urza's Power-Plant, add {C}{C}{C} instead.
'{T}: Add {C}. If you control an Urza's Power-Plant and an Urza's Tower, add {C}{C} instead.
'{T}: Add {C}. If you control an Urza's Power-Plant and an Urza's Tower, add {C}{C} instead.
'At the beginning of your upkeep, this artifact deals 2 damage to the creature with the least toughness. If two or more creatures are tied for least toughness, you choose...
'{B}, Sacrifice a creature: Destroy target nonblack creature.
'Destroy all Goblins.
'{T}: Add {C}.
{7}, {T}: Create a 2/2 colorless Assembly-Worker artifact creature token.
'Choose two — • Creatures you don't control get -2/-0 until end of turn. • Create a tapped Powerstone token. • Create a tapped 0/0 colorless Construct artifact creature token...
'{T}: Add {C}. If you control an Urza's Mine and an Urza's Tower, add {C}{C} instead.