Your search for "predatory sliver 189" revealed the following:
Predatory Sliver (M14) from Magic 2014, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Mathias Kollros Card Text:Sliver creatures you control get +1/+1.
Predatory Sliver - Surprise Slivers (Foil) (SLD) from Secret Lair Drop, available at 401 Games Canada. Rarity: Rare Finish: Foil Artist: Mathias Kollros Card Text: Surprise SliversSliver creatures you control get +1/+1.
Predatory Sliver (Foil) (M14) from Magic 2014, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Mathias Kollros Card Text:Sliver creatures you control get +1/+1.