Your search for "Shifting Sliver 52" revealed the following:
Shifting Sliver - LGN Reprint (PLST) from The List, available at 401 Games Canada. Rarity: Uncommon Finish: Normal Artist: Darrell Riche Card Text:Slivers can't be blocked except by Slivers.
Shifting Sliver (CMM) from Commander Masters, available at 401 Games Canada. Rarity: Uncommon Finish: Normal Artist: Darrell Riche Card Text:Slivers can't be blocked except by Slivers.
Klingon Warrior (005) // Treasure Token (Foil) (TTRK) from Star Trek, available at 401 Games Canada. Rarity: Token Finish: Foil Artist: Henry Peters & David Frasheski Card Text:Klingon Warrior: HasteTreasure: {T}, Sacrifice this token: Add one mana of any color....
Shifting Sliver (Foil) (LGN) from Legions, available at 401 Games Canada. Rarity: Uncommon Finish: Foil Artist: Darrell Riche Card Text:Slivers can't be blocked except by Slivers.