You know how it goes.
There's this captain with a useful skillset, but he's got that annoying Iron Will trait, or he's just a level or two above what you can recruit, so you subdue him and use the Worse Than Death shaming to break his will.
... Except it goes wrong, and he becomes deranged. He's now a level 65 Maniac (I'm level 50 at this point). Between his 15-level lead on me, his traits (which include Berserker, Beast Slayer, Fire and Curse Proof) and the poison weapon he wields that one-shots me if he gets a single hit in, I'm barely able to kill him if I'm really careful and really lucky... But the [expletive deleted] also blundered his way into the Death Defying trait which means he gets a free full-health revive once every confrontation. And because he always chooses "humiliation" when he takes me down, I don't.
Worse and worse, he's an Ambusher, and he has already followed me across province boundaries twice, and he can and will show up while I'm dealing with other targets.
I can't realistically beat him as I am now. I can't make meaningful progress in the game while he's alive because he'll show up and disrupt whatever I'm trying to do.
This effectively stops the game being fun for me.
What do I do?
EDIT: Here's his specifics:
Ashgarn the Unashamed: Poisonous Marauder Tank (LEGENDARY)
Strengths:
- Immunities: Fire, poison
- Hates: Everything, Stealth
- Class traits: Tank, Determination, Wave of Might, Hail of Bolts, Front Line Warrior
- Bonuses:
- Epic Traits: Mighty Warriors, Gang of Elite Warriors
- Poison Weapon, Beast Slayer
Weaknesses:
- Vulnerabilities: Beast Fodder (useless, because Beast Slayer)
- Quivering (dazed by enraged enemies)
- Hints: Damage by ranged, execution, stealth.