Your search for "skullclamp 251/322" revealed the following:
Skullclamp - C20 Reprint (PLST) from The List, available at 401 Games Canada. Rarity: Uncommon Finish: Normal Artist: Daniel Ljunggren Card Text:Equipped creature gets +1/-1.Whenever equipped creature dies, draw two cards.Equip 1
Porthos // Neuroflux Heirloom Token (Foil) (TTRK) from Star Trek, available at 401 Games Canada. Rarity: Token Finish: Foil Artist: Brooklyn Smith & David Frasheski Card Text:Neuroflux Heirloom: Equipped creature gets +1/+1.Equip {2}