Foundry Inspector

Artifact spells you cast cost {1} less to cast.

Void Rend

This spell can't be countered.
Destroy target nonland permanent.

Retrofitter Foundry

{3}: Untap Retrofitter Foundry.
{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.

Leaden Myr

Crush Contraband

Choose one or both —
• Exile target artifact.
• Exile target enchantment.

Azorius Signet

Esper Sentinel

Whenever an opponent casts their first noncreature spell each turn, draw a card unless that player pays {X}, where X is Esper Sentinel's power.

Gold Myr

Thought Monitor

Affinity for artifacts (This spell costs {1} less to cast for each artifact you control.)
Flying
When Thought Monitor enters, draw two cards.

Vedalken Archmage

Whenever you cast an artifact spell, draw a card.

Ornithopter of Paradise

Dimir Signet

Orzhov Signet

Sol Ring

Arcane Signet

{T}: Add one mana of any color in your commander's color identity.

Negate

Silver Myr

Return to Dust

Exile target artifact or enchantment. If you cast this spell during your main phase, you may exile up to one other target artifact or enchantment.

Etherium Sculptor

Urza, Chief Artificer

Affinity for artifact creatures (This spell costs {1} less to cast for each artifact creature you control.)
Artifact creatures you control have menace.
At the beginning of your end step, create a 0/0 colorless Construct artifact creature token with "This creature gets +1/+1 for each artifact you control."