Scars of Mirrodin

Choose two target creatures. Tap those creatures, then unattach all Equipment from them.

Flying Metalcraft — When Lumengrid Drake enters the battlefield, if you control three or more artifacts, return target creature to its owner's hand.

{R}: Saberclaw Golem gains first strike until end of turn.

Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.) When Ichor Rats enter...

{B}, Sacrifice a creature: Regenerate Corrupted Harvester.

Counter target artifact spell. Draw a card.

Metalcraft — Auriok Edgewright has double strike as long as you control three or more artifacts.

You gain 5 life.

{1}{R}, Sacrifice Vulshok Replica: It deals 3 damage to target player or planeswalker.

{B}: Vector Asp gains infect until end of turn. (It deals damage to creatures in the form of -1/-1 counters and to players in the form of poison co...

Metalcraft — Rusted Relic is a 5/5 Golem artifact creature as long as you control three or more artifacts.

{1}{U}, Sacrifice Neurok Replica: Return target creature to its owner's hand.

Equipped creature gets +2/+2 and has infect. (It deals damage to creatures in the form of -1/-1 counters and to players in the form of poison count...

Target creature gets +X/+X until end of turn.

Reach (This creature can block creatures with flying.) Whenever Ezuri's Archers blocks a creature with flying, Ezuri's Archers gets +3/+0 until en...

Target player discards a card. If a land card is discarded this way, return Psychic Miasma to its owner's hand.

Flying Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.)

Whenever you cast an artifact spell, you may have target creature get +2/+0 and gain deathtouch until end of turn.

Whenever an opponent casts a spell, that player loses 5 life unless they discard a card.

As long as Necrotic Ooze is on the battlefield, it has all activated abilities of all creature cards in all graveyards.

Whenever Ogre Geargrabber attacks, gain control of target Equipment an opponent controls until end of turn. Attach it to Ogre Geargrabber. When you...

Each player shuffles the cards from their hand into their library, then draws that many cards. Metalcraft — If you control three or more artifacts,...

Destroy target land. Melt Terrain deals 2 damage to that land's controller.

As an additional cost to cast this spell, sacrifice an artifact. Create three 1/1 red Goblin creature tokens.