Your search for "Megantic Sliver 185" revealed the following:
Megantic Sliver (M14) from Magic 2014, available at 401 Games Canada. Rarity: Rare Finish: Normal Artist: Ryan Barger Card Text:Sliver creatures you control get +3/+3.
Megantic Sliver - Prerelease Promo (Foil) (PM14) from Magic 2014, available at 401 Games Canada. Rarity: Rare Finish: Foil Artist: Lucas Graciano Card Text:Sliver creatures you control get +3/+3.
Megantic Sliver (Foil) (M14) from Magic 2014, available at 401 Games Canada. Rarity: Rare Finish: Foil Artist: Ryan Barger Card Text:Sliver creatures you control get +3/+3.