When playing multiplayer, the character who will have their collar removed is the one crowned champion at the end of the second phase of the arena fight.
After removing your main character's collar, any Magister who sees you will throw you into jail.
you explore and progress with the game in the unintended direction), they will be removed after you complete Act I.
If for whatever reason the collars are still not removed (e.g.
Speak to Leya with Lohse that will be able to calm her down, so convincing her to remove all the remaining Source Collars.
Either way, she will accept to remove all the remaining Source Collars Note: You need to speak to Leya with a character who still has the collar on to trigger the collar removal for your party.
Complete the Most Dangerous When Cornered quest, saving Gareth or retrieving the Broken Source Collar Amulet.
However, she is currently traumatized and not able to help you
Once at the Sanctuary of Amadia, you meet Leya that may remove the rest of the Source Collars.
If you then leave Fort Joy with him through the boat, he will direct you to the Sanctuary of Amadia
After meeting Han, if asked why he doesn't wear a collar, he will reveal to know someone that is able to remove them.
Speak again to Nebora that will be now willing to help you and that will offer to remove the collar of the main character.
Become the champion of the underground arena at the Fort Joy kitchen (see The Arena of Fort Joy).
Speak to Nebora that will reveal to be able to remove the collar but also that don't consider you worth of the service.
Convince Leya to remove the Source Collar of all characters.
Convince Nebora to remove the Source Collar of the main character.
Remove the Source Collars, allowing that characters to equip amulets.
Find someone that may help in removing the Source Collar.
This is one of the main quests automatically acquired at the beginning of the game. The Collar is a main Quest in Divinity: Original Sin II.