Vault Guardsman is a uncommon Artifact Creature — Human Advisor card from Marvel Super Heroes Commander (MSC), collector number 612. Current market price: $0.20 (foil $0.32), TCGplayer market prices via Scryfall.
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.) When this creature enters, exile target artifact or creature an opponent controls until this creature leaves the battlefield.