Your search for "Shifting Sliver 855" revealed the following:
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.
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.