{T}: Add {C}. {W/B}, {T}: Add {W}{W}, {W}{B}, or {B}{B}.

{T}: Add {C}. {W/U}, {T}: Add {W}{W}, {W}{U}, or {U}{U}.

({T}: Add {W}, {U}, or {B}.) This land enters tapped. Cycling {3} ({3}, Discard this card: Draw a card.)

{T}: Add {C}. {U/B}, {T}: Add {U}{U}, {U}{B}, or {B}{B}.

If an effect would create one or more tokens under your control, it creates twice that many of those tokens instead.

Whenever you cast an artifact spell, create a 1/1 colorless Thopter artifact creature token with flying.

Revolt — At the beginning of your end step, if a permanent left the battlefield under your control this turn, create a 1/1 colorless Servo artifact creature token. {1}, Sacrifice a creature: Scry 1.

Whenever you cast an instant or sorcery spell, create an X/X colorless Construct artifact creature token, where X is that spell's mana value. {3}{U}{U}, Exile this enchantment: Return all instant and sorcery cards from your graveyard to your hand. Activate only if you control six or more artifacts.

When The Mightstone and Weakstone enters, choose one — • Draw two cards. • Target creature gets -5/-5 until end of turn. {T}: Add {C}{C}. This mana can't be spent to cast nonartifact spells. (Melds with Urza, Lord Protector.)

{3}: Untap this artifact. {2}, {T}: Create a 1/1 colorless Servo artifact creature token. {1}, {T}, Sacrifice a Servo: Create a 1/1 colorless Thopter artifact creature token with flying. {T}, Sacrifice a Thopter: Create a 4/4 colorless Construct artifact creature token.

Create two 1/1 colorless Servo artifact creature tokens.