Angel's Tomb | Artifact | | Whenever a creature enters the battlefield under your control, you may have Angel's Tomb become a 3/3 white Angel artifact creature with flying until end of turn. | Dan Scott
Brawler's Plate | Artifact | Equipment | Equipped creature gets +2/+2 and has trample. (It can deal excess combat damage to the player or planeswalker it's attacking.)
Equip {4} ({4}: Attach to target creature you control. Equip only as a sorcery.) | Jung Park
Chief of the Foundry | Artifact Creature | Construct | Other artifact creatures you control get +1/+1. | Daniel Ljunggren
Guardians of Meletis | Artifact Creature | Golem | Defender (This creature can't attack.) | Magali Villeneuve
Ramroller | Artifact Creature | Juggernaut | Ramroller attacks each combat if able.
Ramroller gets +2/+0 as long as you control another artifact. | Craig J Spearing
War Horn | Artifact | | Attacking creatures you control get +1/+0. | Lars Grant-West