Your search for "Catacomb Slug 58" revealed the following:
Catacomb Slug (RTR) from Return to Ravnica, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Nils Hamm
Catacomb Slug (Foil) (ORI) from Magic Origins, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Nils Hamm
Catacomb Slug - ORI Reprint (PLST) from The List, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Nils Hamm
Catacomb Slug (Foil) (RTR) from Return to Ravnica, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Nils Hamm
Catacomb Slug (ORI) from Magic Origins, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Nils Hamm