40 cards where the illustration contains “thallid”

Blightreaper Thallid // Blightsower Thallid (March of the Machine #92)
Blightreaper Thallid // Blightsower Thallid (March of the Machine #92)
Choking Miasma (Dominaria United #86)
Deathbloom Thallid (Dominaria #84)
Deathspore Thallid (Time Spiral #102)
Fact or Fiction (Dominaria Remastered #48)
Feral Thallid (Fallen Empires #69)
Fungal Plots (Dominaria #160)
Night Soil (Fallen Empires #71b)
Psychotrope Thallid (Planar Chaos #137)
Savage Thallid (Time Spiral #213)
Slimefoot and Squee (March of the Machine Commander #447)
Slimefoot and Squee (March of the Machine Commander #450)
Slimefoot's Survey (Dominaria United #178)
Slimefoot, Thallid Transplant (Alchemy: Dominaria #26)
Slimefoot, the Stowaway (Dominaria #205)
Slimefoot, the Stowaway (Commander Masters #686)
Slimefoot, the Stowaway (Secret Lair Drop #1138)
Sporecrown Thallid (Dominaria #181)
Sporesower Thallid (Time Spiral #220)
Territorial Allosaurus (Dominaria #184)
Thallid (Modern Masters #167)
Thallid (Fallen Empires #74a)
Thallid (Fallen Empires #74b)
Thallid (Fallen Empires #74c)
Thallid (Fallen Empires #74d)
Thallid Devourer (Fallen Empires #75)
Thallid Germinator (Modern Masters #168)
Thallid Germinator (Time Spiral #225)
Thallid Omnivore (Dominaria #106)
Thallid Shell-Dweller (Time Spiral #226)
Thallid Soothsayer (Dominaria #107)
Thorn Thallid (Fallen Empires #80a)
Thorn Thallid (Fallen Empires #80b)
Thorn Thallid (Fallen Empires #80c)
Thorn Thallid (Fallen Empires #80d)
Tukatongue Thallid (Conflux #96)
Utopia Mycon (Future Sight #140)
Vitaspore Thallid (Planar Chaos #143)
Wild Onslaught (Dominaria #188)
Yavimaya Sapherd (Dominaria #189)

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