18 cards where the name is exactly “basilisk collar” and the Oracle ID is “f5f4dd28-f4ae-4d39-b9b8-6ebfd63c93fe”

Basilisk Collar (Secret Lair Drop #1925)
Basilisk Collar (Secret Lair Drop #1920)
Basilisk Collar (Foundations #669)
Basilisk Collar (Duskmourn: House of Horror Commander #241)
Basilisk Collar (Fallout #1008)
Basilisk Collar (Fallout #753)
Basilisk Collar (Fallout #480)
Basilisk Collar (Fallout #225)
Basilisk Collar (The List #2XM-233)
Basilisk Collar (Alchemy Horizons: Baldur's Gate #253)
Basilisk Collar (Battle for Baldur's Gate Promos #300s)
Basilisk Collar (Commander Legends: Battle for Baldur's Gate #595)
Basilisk Collar (Commander Legends: Battle for Baldur's Gate #300)
Basilisk Collar (Forgotten Realms Commander #199)
Basilisk Collar (Double Masters #233)
Basilisk Collar (The List #MM3-216)
Basilisk Collar (Modern Masters 2017 #216)
Basilisk Collar (Worldwake #122)

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