March of the Machine

Etched Familiar | Artifact Creature | Phyrexian Fox | When Etched Familiar dies, each opponent loses 2 life and you gain 2 life. | Colin Boyer

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

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