Somber Hoverguard

Affinity for artifacts (This spell costs {1} less to cast for each artifact you control.)
Flying

Arcbound Ravager

Sacrifice an artifact: Put a +1/+1 counter on Arcbound Ravager.
Modular 1 (This creature enters with a +1/+1 counter on it. When it dies, you may put its +1/+1 counters on target artifact creature.)

Sculpting Steel

You may have Sculpting Steel enter as a copy of any artifact on the battlefield.

Blinkmoth Nexus

{T}: Add {C}.
{1}: Blinkmoth Nexus becomes a 1/1 Blinkmoth artifact creature with flying until end of turn. It's still a land.
{1}, {T}: Target Blinkmoth creature gets +1/+1 until end of turn.

Island

Cobalt Golem

{1}{U}: Cobalt Golem gains flying until end of turn.

Bonesplitter

Echoing Truth

Return target nonland permanent and all other permanents with the same name as that permanent to their owners' hands.

Thoughtcast

Affinity for artifacts (This spell costs {1} less to cast for each artifact you control.)
Draw two cards.

Thirst for Knowledge

Draw three cards. Then discard two cards unless you discard an artifact card.

Serf

Granite Shard

{3}, {T} or {R}, {T}: Granite Shard deals 1 damage to any target.

Welding Jar

Sacrifice Welding Jar: Regenerate target artifact.

Tooth of Chiss-Goria

Flash
Affinity for artifacts (This spell costs {1} less to cast for each artifact you control.)
{T}: Target creature gets +1/+0 until end of turn.

Inertia Bubble

Enchant artifact
Enchanted artifact doesn't untap during its controller's untap step.

Seat of the Synod

Arcbound Stinger

Flying
Modular 1 (This creature enters with a +1/+1 counter on it. When it dies, you may put its +1/+1 counters on target artifact creature.)

Annul

Counter target artifact or enchantment spell.

Nuisance Engine

{2}, {T}: Create a 0/1 colorless Pest artifact creature token.

Neurok Spy

Neurok Spy can't be blocked as long as defending player controls an artifact.

Carry Away

Enchant Equipment
When Carry Away enters, unattach enchanted Equipment.
You control enchanted Equipment.