To kill a Grim Hunter

I'm struggling to find a way to kill a Grim Hunter.

I already tried Dread and Fascination, but that only generates more Dread and Fascination.

Is there a way to get rid of him?

Solution 1:

I just found this guide with a huge amount of information regarding the game.

Specifically related to the question, it says

Use Dread, Fascination, Lantern, or Winter Lore to drive Investigators insane. Grim Hunters are weak to Dread and Winter Lore while Idealists are weak to Fascination and Lantern.

Other ways to kill them :

Keep murdering/capturing Hunters as they show up by using followers with Edge, or using poisons (items received from Expeditions).

But to accept this answer and close it, I just killed a Grim Hunter AND a Idealist hunter using Maid-In-The-Mirror