Homebrew Hag

[Pork Chop]

Hello everyone, I am homebrewing a campaign and for story reasons I need a creature that I would call an "Earth Hag." She will be in charge of a mining operation so she needs to be focused for that environment. I need ideas please. I was going to reskin a Hag and change abilities such as giving her a burrow speed, etc. Does anyone happen to have something like this already worked up? She is going to be working with a Night Hag and a Sea Hag so the level needs to be between 3 and 9. I may give the Sea Hag the elite template and the Night Hag the weak template to bring them all closer together in strength. If there is a 3rd party creature already designed that's OK too I don't mind 3rd party stuff.

[YuriP]

Interesting. As lore you can write that Earth Hags kills and some times eats subterrain creatues specially dwarves. That she miserly accumulate gold and precious stones stealing from miners or forcing miners to work for them.
A good sugestion for Coven spells is Blazing Fissure, Passwall and Flesh to Stone
You can use Annis Hag as basis once is the hag that chassis is more closer to what I imagine from a Earth Hag. Her level is also between Night Hag and a Sea Hag so may fulfill want you want.