One thing about moder specifically is that if you are WET when you go there, even with frost resist armor or potion, you will take deadly amounts of damage from the ice attacks.

Other than that, its a choice of kiting and shooting for a good hour or using bonemass power and melee her. Not sure what best melee weapon you would have for her is, but you can wiki that part.
Try obsidian arrows as your go-to. Fire does extra damage but the base is low on those, they are meadows gear after all.

I don't think anything changed here. Its a tough fight if you don't have any next level gear (its possible to get needle arrows at the very least).