14 cards where the artist name includes “wolfskulljack”

Aegar, the Freezing Flame (Magic Online Promos #88386)
Dragonlord Silumgar (Secret Lair Showdown #9)
Esika's Chariot (Magic Online Promos #88342)
Firja, Judge of Valor (Multiverse Legends #40)
Jeska, Thrice Reborn (Secret Lair Drop #1201)
Jorn, God of Winter // Kaldring, the Rimestaff (Magic Online Promos #88350)
Jorn, God of Winter // Kaldring, the Rimestaff (Magic Online Promos #88350)
Primeval Titan (Secret Lair Drop #221)
Thirsting Roots (Phyrexia: All Will Be One #185)
Titanic Growth (Phyrexia: All Will Be One #187)
Uchbenbak, the Great Mistake (The Lost Caverns of Ixalan #310)
Vito, Fanatic of Aclazotz (The Lost Caverns of Ixalan #311)
Wickerfolk Thresher (Duskmourn: House of Horror #207)
You Are Unworthy of Mercy (Duskmourn: House of Horror Commander #359)
You Exist Only to Amuse (Duskmourn: House of Horror Commander #361)

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