Your search for "Cadaverous Knight 20" revealed the following:
Corpse Knight (M20) from Core Set 2020, available at 401 Games Canada. Rarity: Uncommon Finish: Normal Artist: Karl Kopinski Card Text:Whenever another creature enters the battlefield under your control, each opponent loses 1 life.
Cadaverous Knight (HOP) from Planechase, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Dermot Power Card Text:Flanking (Whenever a creature without flanking blocks this creature, the blocking creature gets -1/-1 until end of turn.)1BB: Regenerate Cadaverous Knight.
Cadaverous Knight (MIR) from Mirage, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Dermot Power Card Text:Flanking (Whenever a creature without flanking is assigned to block this creature, the blocking creature gets -1/-1 until end of turn.)1BB: Regenerate...
Cadaverous Knight - MIR Reprint (PLST) from The List, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Dermot Power Card Text:Flanking (Whenever a creature without flanking is assigned to block this creature, the blocking creature gets -1/-1 until...
Due to distribution restrictions we are only able to ship this product to addresses within Canada.