12 cards where the illustration contains “necron-glyphs”

Canoptek Wraith (Warhammer 40,000 Commander #153)
Chronomancer (Warhammer 40,000 Commander #32)
Defile (Warhammer 40,000 Commander #199)
Hedron Archive (Warhammer 40,000 Commander #240)
Lokhust Heavy Destroyer (Warhammer 40,000 Commander #38)
Lychguard (Warhammer 40,000 Commander #39)
Mask of Memory (Warhammer 40,000 Commander #243)
Mind Stone (Warhammer 40,000 Commander #245)
Neyam Shai Murad (Warhammer 40,000 Commander #135)
Skorpekh Destroyer (Warhammer 40,000 Commander #57)
The War in Heaven (Warhammer 40,000 Commander #69)
Unstable Obelisk (Warhammer 40,000 Commander #260)

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