Your search for "Clot Sliver 5" revealed the following:
Clot Sliver (TMP) from Tempest, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Jeff Laubenstein Card Text:Each Sliver gains “2: Regenerate this creature.”
Clot Sliver (Foil) (H09) from Premium Deck Series: Slivers, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Jeff Laubenstein Card Text:All Slivers have "2: Regenerate this permanent."
Clot Sliver (CMM) from Commander Masters, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Jeff Laubenstein Card Text:All Slivers have "2: Regenerate this permanent." (The next time this permanent would be destroyed, instead tap it, remove it from...
Sliver Gravemother - Extended Art (Foil) (CMM) from Commander Masters, available at 401 Games Canada. Rarity: Mythic Rare Finish: Foil Artist: Chris Rahn Card Text:The "legend rule" doesn't apply to Slivers you control.Each Sliver creature card in your graveyard has...