13 cards where the illustration contains “background-eyes”

Acidic Slime (Secret Lair Drop #134)
Call of the Wild (Weatherlight #122)
Forest (Shadowmoor #300)
Forest (Revised Edition #306)
Garruk, Unleashed (Core Set 2021 #183)
Lurking Predators (Magic 2010 #190)
Maestros Initiate (Streets of New Capenna #86)
Plague Rats (Limited Edition Alpha #121)
Ravenous Rats (Invasion #120)
Twilight Mire (Eventide #180)
Unlucky Witness (Streets of New Capenna #128)
Waiting in the Weeds (Mirage #252)
Word of Command (Limited Edition Alpha #136)

This search is finished. Now the real work can begin.