22 cards where the card is tagged “tribal-saproling”

Deathspore Thallid (Time Spiral Remastered #109)
Elvish Farmer (Masters Edition II #156)
Fungal Plots (Commander Masters #291)
Life and Limb (Time Spiral Remastered #215)
Mycologist (Time Spiral Remastered #29)
Nemata, Grove Guardian (Commander Masters #307)
Nemata, Primeval Warden (Dominaria United #209)
Pallid Mycoderm (Time Spiral Remastered #31)
Psychotrope Thallid (Planar Chaos #137)
Savage Thallid (Time Spiral #213)
Slimefoot and Squee (March of the Machine Commander #447)
Slimefoot, the Stowaway (Commander Masters #356)
Sporecrown Thallid (Dominaria #181)
Tendershoot Dryad (Rivals of Ixalan #147)
Thallid Devourer (Masters Edition II #181)
Thallid Germinator (Time Spiral Remastered #236)
Thallid Omnivore (Dominaria #106)
Thelonite Hermit (Murders at Karlov Manor Commander #188)
The Mycotyrant (The Lost Caverns of Ixalan #235)
Utopia Mycon (Time Spiral Remastered #244)
Verdeloth the Ancient (Commander Masters #330)
Vitaspore Thallid (Planar Chaos #143)

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