The Brothers' War Retro Artifacts

Adaptive Automaton | Artifact Creature | Construct | As Adaptive Automaton enters the battlefield, choose a creature type. Adaptive Automaton is the chosen type in addition to its other types. Other creatures you control of the chosen type get +1/+1. | Igor Kieryluk

Lodestone Golem | Artifact Creature | Golem | Nonartifact spells cost {1} more to cast. | Chris Rahn

Phyrexian Revoker | Artifact Creature | Phyrexian Horror | As Phyrexian Revoker enters the battlefield, choose a nonland card name. Activated abilities of sources with the chosen name can't be activated. | Kev Walker

Precursor Golem | Artifact Creature | Golem | When Precursor Golem enters the battlefield, create two 3/3 colorless Golem artifact creature tokens. Whenever a player casts an instant or sorcery spell that targets only a single Golem, that player copies that spell for each other Golem that spell could target. Each copy targets a different one of those Golems. | Chippy

Psychosis Crawler | Artifact Creature | Phyrexian Horror | Psychosis Crawler's power and toughness are each equal to the number of cards in your hand. Whenever you draw a card, each opponent loses 1 life. | Stephan Martiniere

Scrap Trawler | Artifact Creature | Construct | Whenever Scrap Trawler or another artifact you control is put into a graveyard from the battlefield, return to your hand target artifact card in your graveyard with lesser mana value. | Daarken