Sacrifice a creature: Add {C}{C}.

Deathtouch

Whenever Ashnod, Flesh Mechanist attacks, you may sacrifice another creature. If you do, create a tapped Powerstone token.

{5}, Exile a creature card from your graveyard: Create a tapped 3/3 colorless Zombie artifact creature token.

When Breya's Apprentice enters the battlefield, create a 1/1 colorless Thopter artifact creature token with flying.

{T}, Sacrifice an artifact: Choose one --

• Exile the top card of your library. Until the end of your next turn, you may play that card.

• Target creature gets +2/+0 until end of turn.

Indestructible

Darksteel Juggernaut's power and toughness are each equal to the number of artifacts you control.

Darksteel Juggernaut attacks each combat if able.

Flying

At the beginning of your upkeep, return an artifact you control to its owner's hand.

Flying

At the beginning of your upkeep, return an artifact you control to its owner's hand.

Flying

At the beginning of your upkeep, return an artifact you control to its owner's hand.

Metalcraft -- Etched Champion has protection from all colors as long as you control three or more artifacts.

Metalcraft -- Etched Champion has protection from all colors as long as you control three or more artifacts.

Metalcraft -- Etched Champion has protection from all colors as long as you control three or more artifacts.

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

Hangarback Walker enters the battlefield with X +1/+1 counters on it.

When Hangarback Walker dies, create a 1/1 colorless Thopter artifact creature token with flying for each +1/+1 counter on Hangarback Walker.

{1}, {T}: Put a +1/+1 counter on Hangarback Walker.

Revolt -- At the beginning of your end step, if a permanent you controlled left the battlefield this turn, create a 1/1 colorless Servo artifact creature token.

{1}, Sacrifice a creature: Scry 1.

Sacrifice an artifact: Add {C}{C}.

When Malcator, Purity Overseer enters the battlefield, create a 3/3 colorless Phyrexian Golem artifact creature token.

At the beginning of your end step, if three or more artifacts entered the battlefield under your control this turn, create a 3/3 colorless Phyrexian Golem artifact creature token.

When Malcator, Purity Overseer enters the battlefield, create a 3/3 colorless Phyrexian Golem artifact creature token.

At the beginning of your end step, if three or more artifacts entered the battlefield under your control this turn, create a 3/3 colorless Phyrexian Golem artifact creature token.

Lifelink

Whenever another artifact enters the battlefield under your control, Mandible Justiciar gets +1/+1 until end of turn.

As Mirrodin Besieged enters the battlefield, choose Mirran or Phyrexian.

• Mirran -- Whenever you cast an artifact spell, create a 1/1 colorless Myr artifact creature token.

• Phyrexian -- At the beginning of your end step, draw a card, then discard a card. Then if there are fifteen or more artifact cards in your graveyard, target opponent loses the game.

When Myr Retriever dies, return another target artifact card from your graveyard to your hand.

Whenever another creature you control dies, create a Treasure token. (It's an artifact with "{T}, Sacrifice this artifact: Add one mana of any color.")

Razorlash Transmogrant can't block.

{4}{B}{B}: Return Razorlash Transmogrant from your graveyard to the battlefield with a +1/+1 counter on it. This ability costs {4} less to activate if an opponent controls four or more nonbasic lands.

Scrapheap Scrounger can't block.

{1}{B}, Exile another creature card from your graveyard: Return Scrapheap Scrounger from your graveyard to the battlefield.

Battle cry (Whenever this creature attacks, each other attacking creature gets +1/+0 until end of turn.)

Signal Pest can't be blocked except by creatures with flying or reach.

{U/P}: Change a target of target spell or ability to Spellskite. ({U/P} can be paid with either {U} or 2 life.)

{U/P}: Change a target of target spell or ability to Spellskite. ({U/P} can be paid with either {U} or 2 life.)

Teething Wurmlet has deathtouch as long as you control three or more artifacts.

Whenever an artifact enters the battlefield under your control, you gain 1 life. If this is the first time this ability has resolved this turn, put a +1/+1 counter on Teething Wurmlet.

Trample

Traxos, Scourge of Kroog enters the battlefield tapped and doesn't untap during your untap step.

Whenever you cast a historic spell, untap Traxos. (Artifacts, legendaries, and Sagas are historic.)

Whenever you cast a Myr spell, create a 1/1 colorless Myr artifact creature token.

At the beginning of combat on your turn, untap each Myr you control.

{W}{U}{B}{R}{G}, {T}: Put three +1/+1 counters on each Myr you control. Activate only during your turn.

At the beginning of your end step, untap target artifact.

Whenever an artifact enters the battlefield under your control, put a +1/+1 counter on target creature you control.