11 cards where the illustration contains “golgothian-sylex”

Fateful Handoff (The Brothers' War #94)
Golgothian Sylex (Antiquities #51)
Karn's Sylex (Dominaria United #234)
Loran of the Third Path (The Brothers' War #12)
Loran's Escape (The Brothers' War #14)
The Brothers' War (The Brothers' War Commander #22)
Urza, Lord Protector (The Brothers' War #225)
Urza's Command (The Brothers' War #70)
Urza's Ruinous Blast (Dominaria United Commander #107)
Urza's Ruinous Blast (Dominaria #39)
Urza's Sylex (The Brothers' War #40)

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