Vulshok Splitter is a common Artifact — Equipment card from Phyrexia: All Will Be One (ONE), collector number 156. Current market price: $0.15 (foil $0.24), TCGplayer market prices via Scryfall.
For Mirrodin! (When this Equipment enters, create a 2/2 red Rebel creature token, then attach this to it.) Equipped creature gets +2/+0. Equip {2}{R} ({2}{R}: Attach to target creature you control. Equip only as a sorcery.)