Darksteel

Scavenging Scarab can't block.

Whenever a player casts an artifact spell, that player gains control of Drooling Ogre. (This effect lasts indefinitely.)

Protection from artifacts

Flash (You may cast this spell any time you could cast an instant.) Reach (This creature can block creatures with flying.)

As long as Auriok Glaivemaster is equipped, it gets +1/+1 and has first strike.

Affinity for artifacts (This spell costs {1} less to cast for each artifact you control.) Flying When Chromescale Drake enters the battlefield, rev...

Flying As long as Pristine Angel is untapped, it has protection from artifacts and from all colors. Whenever you cast a spell, you may untap Pristi...

Whenever Roaring Slagwurm attacks, tap all artifacts.

Whenever Gemini Engine attacks, create a colorless Construct artifact creature token named Twin that's attacking. Its power is equal to Gemini Engi...

Flying Sacrifice Pteron Ghost: Regenerate target artifact.

Flying Discard an artifact card: Return Neurok Prodigy to its owner's hand.

Haste Modular 2 (This creature enters the battlefield with two +1/+1 counters on it. When it dies, you may put its +1/+1 counters on target artifac...

Whenever Tel-Jilad Wolf becomes blocked by an artifact creature, Tel-Jilad Wolf gets +3/+3 until end of turn.

Flying Drill-Skimmer has shroud as long as you control another artifact creature. (It can't be the target of spells or abilities.)

At the beginning of your end step, if Nim Abomination is untapped, you lose 3 life.

Karstoderm enters the battlefield with five +1/+1 counters on it. Whenever an artifact enters the battlefield, remove a +1/+1 counter from Karstoderm.

{T}: Target creature gets +1/+1 until end of turn. Whenever you cast a spell, you may untap Leonin Battlemage.

Flying Whenever Emissary of Despair deals combat damage to a player, that player loses 1 life for each artifact they control.

Flying Whenever Emissary of Hope deals combat damage to a player, you gain 1 life for each artifact that player controls.

{U}: Target creature becomes an artifact in addition to its other types until end of turn. {U}: Until end of turn, target artifact creature becomes...

Mephitic Ooze gets +1/+0 for each artifact you control. Whenever Mephitic Ooze deals combat damage to a creature, destroy that creature. The creatu...

Juggernaut attacks each combat if able. Juggernaut can't be blocked by Walls.

{W}, {T}, Return Steelshaper Apprentice to its owner's hand: Search your library for an Equipment card, reveal that card, and put it into your hand...

Imprint — {1}: Exile target creature card from your graveyard. As long as a card exiled with Death-Mask Duplicant has flying, Death-Mask Duplicant ...