25 cards where the name includes “urborg”

Evil Eye of Urborg (Time Spiral #107)
Moira, Urborg Haunt (Dominaria United Commander #6)
Nevinyrral, Urborg Tyrant (Commander Legends #287)
Purraj of Urborg (Mirage #135)
Ratadrabik of Urborg (Dominaria United #213)
Tribute to Urborg (Dominaria United #113)
Urborg (Masters Edition III #214)
Urborg Drake (Battlebond #231)
Urborg Elf (Apocalypse #90)
Urborg Emissary (Invasion #131)
Urborg Justice (Weatherlight #84)
Urborg Lhurgoyf (Dominaria United #186)
Urborg Mindsucker (Visions #71)
Urborg Panther (Mirage #150)
Urborg Phantom (Invasion #132)
Urborg Repossession (Dominaria United #114)
Urborg Scavengers (March of the Machine: The Aftermath #15)
Urborg Shambler (Invasion #133)
Urborg Skeleton (Invasion #134)
Urborg Stalker (Weatherlight #85)
Urborg Syphon-Mage (Dominaria Remastered #106)
Urborg, Tomb of Yawgmoth (Time Spiral Remastered #287)
Urborg Uprising (Dominaria Remastered #107)
Urborg Volcano (Commander 2017 #288)
Yargle, Glutton of Urborg (Commander Masters #202)

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