March of the Machine

Flywheel Racer | Artifact | Vehicle | Vigilance {T}: Add one mana of any color. Activate only if Flywheel Racer is a creature. Crew 1 (Tap any number of creatures you control with total power 1 or more: This Vehicle becomes an artifact creature until end of turn.) | Joshua Cairos

Halo Hopper | Artifact Creature | Frog | Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for {1} or one mana of that creature's color.) | Daniel Ljunggren

Kitesail | Artifact | Equipment | Equipped creature gets +1/+0 and has flying. Equip {2} ({2}: Attach to target creature you control. Equip only as a sorcery.) | Ben Hill

Phyrexian Archivist | Artifact Creature | Phyrexian Construct | Reach {2}, {T}: Put target card from a graveyard on the bottom of its owner's library. | Daniel Romanovsky

Realmbreaker, the Invasion Tree | Legendary Artifact | | {2}, {T}: Target opponent mills three cards. Put a land card from their graveyard onto the battlefield tapped under your control. It gains "If this land would leave the battlefield, exile it instead of putting it anywhere else." {10}, {T}, Sacrifice Realmbreaker, the Invasion Tree: Search your library for any number of Praetor cards, put them onto the battlefield, then shuffle. | Kekai Kotaki

Skittering Surveyor | Artifact Creature | Construct | When Skittering Surveyor enters the battlefield, you may search your library for a basic land card, reveal it, put it into your hand, then shuffle. | Igor Kieryluk

Sword of Once and Future | Artifact | Equipment | Equipped creature gets +2/+2 and has protection from blue and from black. Whenever equipped creature deals combat damage to a player, surveil 2. Then you may cast an instant or sorcery spell with mana value 2 or less from your graveyard without paying its mana cost. If that spell would be put into your graveyard, exile it instead. Equip {2} | Joshua Cairos

Urn of Godfire | Artifact | | {2}: Add one mana of any color. {6}, {T}, Sacrifice Urn of Godfire: Destroy target creature or enchantment. | Ovidio Cartagena