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'As this artifact enters, choose a creature type.
Creature spells of the chosen type cost {2} less to cast.
'You may spend white mana as though it were red mana.
'{T}: Look at target player's hand.
'Kicker {8}{R} (You may pay an additional {8}{R} as you cast this spell.) This spell can't be countered. Urza's Rage deals 3 damage to any target. If this spell was...
'{T}: Add {C}. If you control an Urza's Mine and an Urza's Tower, add {C}{C} instead.
'You may spend white mana as though it were red mana.
'{T}: Add {C}. If you control an Urza's Mine and an Urza's Power-Plant, add {C}{C}{C} instead.
'{T}: Add {C}.
Metalcraft — {T}: Add {C} for each Urza's land you control. Activate only if you control three or more artifacts.
'Reach (This creature can block creatures with flying.)
'When an opponent casts a spell, if this permanent is an enchantment, it becomes a 3/3 Illusion creature with flying and "At the beginning of your upkeep, sacrifice this creature...
'{T}: Add {C}.
{7}, {T}: Create a 2/2 colorless Assembly-Worker artifact creature token.
'{T}: Add {C}. If you control an Urza's Power-Plant and an Urza's Tower, add {C}{C} instead.