Your search for "Death Mark 445" revealed the following:
Necron Deathmark (40K) from Warhammer 40,000 Commander, available at 401 Games Canada. Rarity: Rare Finish: Normal Artist: Games Workshop Card Text:FlashSynaptic Disintegrator — When Necron Deathmark enters the battlefield, destroy up to one target creature and target player mills three...
Deathmark (Foil) (CSP) from Coldsnap, available at 401 Games Canada. Rarity: Uncommon Finish: Foil Artist: Jeremy Jarvis Card Text:Destroy target green or white creature.
Deathmark (Foil) (MM2) from Modern Masters 2015, available at 401 Games Canada. Rarity: Uncommon Finish: Foil Artist: Steven Belledin Card Text:Destroy target green or white creature.
Deathmark (MM2) from Modern Masters 2015, available at 401 Games Canada. Rarity: Uncommon Finish: Normal Artist: Steven Belledin Card Text:Destroy target green or white creature.
Necron Deathmark (Surge Foil) (40K) from Warhammer 40,000 Commander, available at 401 Games Canada. Rarity: Rare Finish: Foil Artist: Games Workshop Card Text:FlashSynaptic Disintegrator — When Necron Deathmark enters the battlefield, destroy up to one target creature and target player...