Bason

Bason (馬 孫?, Pinyin: Mǎsūn or Ma3 Sun1) is a fictional character in the anime and manga Shaman King.

Bason is the ghost of an ancient Chinese wujiang (a military class of ancient China) that served for the Tao family. He carries a kwan dao (a weapon similar to a halberd but with one curved edge and one straight edge following the line of the handle). He is sworn to serve Tao Ren, and he will do so as much as he can to serve him. In his days as an ancient Chinese warrior, Bason rode into battle on a horse named Hei-Tao. The spirit of Hei-Tao can be integrated into another horse kept by Ren, named Bái-Feng, to perform the Perfect Re-enactment of the Vorpal Dance. He is capable of adding tremendous strength and speed to Ren's kwan dao, and even making it quite larger, but also uses his body in attacks such as the Golden Punch. In Giant Spirit Form, Bason appears as a gigantic robot capable of launching fireballs.

Like Ren, Bason appears very cold and cruel at the beginning of the series, however, following interaction with Yoh Asakura, Bason, like his master, begins to soften up and develop a much more pleasant disposition. He feels an overwhelming sense of duty to his master, even breaking down in tears when Ren is imprisoned by his father. While Bason and Amidamaru are very hostile and competitive at first, they soon become friendly rivals.

In the English manga, Bason calls Ren "Master Ren," while in the Japanese version he calls Ren "Bocchama," which means "Young Master."