6 cards where the illustration contains “skull-necklace”

Anzrag's Rampage (Murders at Karlov Manor #111)
Fists of Ironwood (Ravnica: City of Guilds #164)
Gnottvold Hermit // Chrome Host Hulk (March of the Machine #188)
Gnottvold Hermit // Chrome Host Hulk (March of the Machine #188)
Scourge Devil (Shards of Alara #113)
Scrappy Bruiser (March of the Machine #382)
Stone Giant (Limited Edition Alpha #176)

The message was clear to Sorin—time to search for something else.