11 cards where the illustration contains “peacock”

Coveted Peacock (Conspiracy: Take the Crown #29)
Dispersing Orb (Onslaught #80)
Dukhara Peafowl (Kaladesh #207)
Jeweled Bird (Arabian Nights #66)
Kindred Discovery (Commander Legends: Battle for Baldur's Gate #81)
Preening Champion (March of the Machine #73)
Relic Ward (Visions #16)
Selfie Preservation (Unstable #119)
Snow-Covered Island (Secret Lair Drop #1474)
Soaring Show-Off (Battlebond #40)
Yanling's Harbinger (Core Set 2020 #289)

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