My only complaint about mummie is she feels out of place. I mopped the floor with the entire rest of them at once, but she wrecked my face. On my 2nd try I just ignored the rest of the camp until I focused her down, then clean up was easy... I'm not sure if she maybe just has a VERY efficient build for her level or what, but she does hit like a freight train.
short answer is kill her at all costs first, CC is your best friend however you can pull it off.
