14 cards where the illustration contains “pteron”

Armored Skyhunter (Commander Legends #617)
Barbed Lightning (Darksteel #55)
Gold Myr (Mirrodin #180)
Grab the Reins (Mirrodin #95)
Kemba's Skyguard (Duel Decks: Elspeth vs. Tezzeret #13)
Leonin Skyhunter (Mirrodin Besieged #11)
Leonin Skyhunter (Mirrodin #11)
Pteron Ghost (Darksteel #10)
Skyhunter Cub (Mirrodin #21)
Skyhunter Patrol (Mirrodin #22)
Skyhunter Prowler (Fifth Dawn #15)
Skyhunter Skirmisher (Fifth Dawn #16)
Skyhunter Strike Force (Phyrexia: All Will Be One Commander #21)
White Sun's Zenith (Mirrodin Besieged #19)

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