Dominaria

Amaranthine Wall | Artifact Creature | Wall | Defender {2}: Amaranthine Wall gains indestructible until end of turn. (Damage and effects that say "destroy" don't destroy it.) | Jason Felix

Jhoira's Familiar | Artifact Creature | Bird | Flying Historic spells you cast cost {1} less to cast. (Artifacts, legendaries, and Sagas are historic.) | Kev Walker

Juggernaut | Artifact Creature | Juggernaut | Juggernaut attacks each combat if able. Juggernaut can't be blocked by Walls. | Jonas De Ro

Traxos, Scourge of Kroog | Legendary Artifact Creature | Construct | 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.) | Lius Lasahido