Ancient Grudge

Destroy target artifact.
Flashback {G} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Gorilla Shaman

{X}{X}{1}: Destroy target noncreature artifact with mana value X.

Echoing Ruin

Destroy target artifact and all other artifacts with the same name as that artifact.

Corridor Monitor

When Corridor Monitor enters, untap target artifact or creature you control.

Myr Landshaper

{T}: Target land becomes an artifact in addition to its other types until end of turn.

Ashnod's Transmogrant

{T}, Sacrifice Ashnod's Transmogrant: Put a +1/+1 counter on target nonartifact creature. That creature becomes an artifact in addition to its other types.

Molder

Destroy target artifact or enchantment with mana value X. It can't be regenerated. You gain X life.

Manic Vandal

When Manic Vandal enters, destroy target artifact.

Builder's Bane

Destroy X target artifacts. Builder's Bane deals damage to each player equal to the number of artifacts they controlled that were put into a graveyard this way.

Mnemonic Wall

Defender
When Mnemonic Wall enters, you may return target instant or sorcery card from your graveyard to your hand.

Seismic Spike

Ghostly Flicker

Exile two target artifacts, creatures, and/or lands you control, then return those cards to the battlefield under your control.

Neurok Spy

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

Auriok Transfixer

Bouncing Beebles

Bouncing Beebles can't be blocked as long as defending player controls an artifact.

Cleansing Wildfire

Destroy target land. Its controller may search their library for a basic land card, put it onto the battlefield tapped, then shuffle.
Draw a card.

Leonin Squire

When Leonin Squire enters, return target artifact card with mana value 1 or less from your graveyard to your hand.

Machinate

Look at the top X cards of your library, where X is the number of artifacts you control. Put one of those cards into your hand and the rest on the bottom of your library in any order.