With the Hellions stack Bleed on Hag, only 25% bleed resist. Get two Hellions in front, then a Grave Robber and last a Vestal.

So my suggestion would be to make the pot not dodge, make it a small unit, make it wear down, and maybe make the dmg% debuff less. Now back to me not knowing what type of cooklery your team owns, but most pots wear down when you attack it with swords/knives/guns/magic/ect. So now you barely hurt the moving shield pot. 3 The seasoning attack having a 50% dmg debuff. This would be fine if it didn't regen its hp back to 28 after you free a hero.

So now this moving pot can also act as a shield.

I don't know what kind of pots/cauldrons your dev team owns but from my experince cooklery doesn't move on its own. The problem is to free the captured hero you need to damage the pot, and sometimes the pot magically dodges an attack. This is a very interesting way to make the boss harder and can be very fun. Few points that just make this boss feel unfair and unnessesarily hard to beat.

Wizard hag darkest dungeon