Foundations Commander

Artifact Creature — Juggernaut

Indestructible
Darksteel Juggernaut's power and toughness are each equal to the number of artifacts you control.
This creature attacks each combat if able.

Darksteel Juggernaut

Commander Legends

Creature — Beast

Trample
Whenever an artifact is put into a graveyard from the battlefield, this creature gets +2/+0 until end of turn.

Molder Beast

Artifact Creature — Gargoyle

Lumengrid Gargoyle

The List

Creature — Vampire Warrior

Metalcraft — When this creature enters, if you control three or more artifacts, target player loses 4 life and you gain 4 life.

Bleak Coven Vampires

Mirrodin Besieged

Artifact

{T}: Create a 1/1 colorless Myr artifact creature token.
{T}, Tap five untapped Myr you control: Search your library for a Myr creature card, put it onto the battlefield, then shuffle.

Myr Turbine

Scars of Mirrodin

Creature — Human Scout

{W}, Sacrifice this creature: Return target artifact card from your graveyard to your hand.

Salvage Scout

Artifact Creature — Myr

Indestructible (Damage and effects that say "destroy" don't destroy this creature. If its toughness is 0 or less, it still dies.)