15 cards where the artist name includes “peter diamond”

Alquist Proft, Master Sleuth (Murders at Karlov Manor #355)
Arcanis the Omnipotent (Secret Lair Drop #498)
Aurelia, the Law Above (Murders at Karlov Manor #357)
Aurelia, the Law Above // Aurelia, the Law Above (Murders at Karlov Manor Art Series #41)
Aurelia, the Law Above // Aurelia, the Law Above (Murders at Karlov Manor Art Series #41)
Brimaz, King of Oreskos (Secret Lair Drop #497)
Frantic Scapegoat (Murders at Karlov Manor #347)
Kemba, Kha Regent (Commander Masters #671)
Kemba, Kha Regent // Kemba, Kha Regent (Commander Masters Art Series #51)
Kemba, Kha Regent // Kemba, Kha Regent (Commander Masters Art Series #51)
Kudo, King Among Bears (Modern Horizons 3 #376)
Pearl-Ear, Imperial Advisor (Modern Horizons 3 #363)
Queen Marchesa (Secret Lair Drop #499)
Savra, Queen of the Golgari (Secret Lair Drop #500)
Vilis, Broker of Blood (Secret Lair Drop #1567)
Yarus, Roar of the Old Gods (Murders at Karlov Manor #375)
Yarus, Roar of the Old Gods // Yarus, Roar of the Old Gods (Murders at Karlov Manor Art Series #46)
Yarus, Roar of the Old Gods // Yarus, Roar of the Old Gods (Murders at Karlov Manor Art Series #46)

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