Feel like fighter definitely needs love though. They should be able to pry off shadowheart's pod too. Maybe make it a bit harder than the barbs role but I think it should be an option
But what if you make your Fighter based on Dexterity, instead of Strength?
And why not also Cleric? They can have as much Strength as Fighter.
Thats why there is only Barbarian, even tho in Larian version it is possible to play Dex Barb. O_o
If there should be any change it should be just regular [Strength] roll ... rather than just specific classes.
With option for Barbarian to burn Rage, in order to get Advantage, but having to make (easy) saving throw to calm down, otherwise you attack Shadowheart ... bcs you are too angry.