Big Chief

Big Chief(ビッグチーフ) is totem bird spirit and the guardian ghost of Goldva, Chief of the Patch Tribe

About
Even though its spirit form is never seen it is revealed by Goldva that Big Chief was a former leader of the Patch Tribe who had finally been revived. It has most likely transformed over the years to a bird like spirit based upon the Native American Totem Birds, The Raven or The Thunderbird. The Big Chief is most likely a Kami-Type Spirit.

Past
Big Chief was, according to Goldva, once the chief of the Patch Tribe, who like many other, after their death, stayed with the tribe as a spirit and one day evolved to a Kami Class Spirit that took the form of a totem bird.

Assault on the Plants
The big Chief made it's debut by goldva destroying the Golem with ease once but did it again after it got up.

O.S. Big Chief
O.S. "Big Chief"(O.S. ビッグチーフ) Description: By jumping into the air, crosing her arms, and holding her pipe the spirit of the former Patch Tribe will begin to materialize around her body. When completly oversouled it takes the form of a muscular humanoid armour for Goldva to wear around her body, with, for some strange reason, a large iron ball, ressembling a cartoonish bomb, instead of its right hand. Also In this form it becomes gigantic and even as big as the Five Grand Elemental Spirits, and have the head of a thunderbird, and the common Tribal Chief headdress. It also gains waist and wrist amoury. It was first seen when Redseb and Seyram Munzer invaded the Sanctuary of the Great Spirit and attacked Asakura Hao with Golem. Quickly creating her oversoul, Goldva easily smashed Golem with the large iron ball.
 * Shaman: Goldva, Chief of the Patch Tribe
 * O.S. Type: Spirit Type
 * Spirit Ally: Big Chief(Kami-Type Spirit)
 * Medium(s) Used: Goldva`s Pipe; Goldva`s Body

Attacks

Anime/Manga Difference
Because the anime ended a lot earlier than the manga and the fact that the entire second round of the Shaman Fight is completly changed in the anime, is the Big Chief never seen, nor mentioned in the anime.