Big Bertha

"" is the name of a marine arachnid-type hyperspecies abnormal. She is one of the most powerful beings on the planet, and a member of the avatar council seen in the avatar chamber.

Biography
Also known as "Kali", as she represents the Hindu goddess associated with eternal energy, this abnormal is capable of altering the magnetic resonance of her body to manipulate tectonic plates and cause underwater earthquakes, as well as having the ability to create new volcanic islands.