Cho-Oni

The Cho-oni(チョおに, cho oni,) is a fictional character in the manga series of Shaman King.

About
The Cho-oni is introduced in the manga during Asakura Yoh's training in hell. These Oni seem to be the strongest Oni within the Great Spirit, capable of slaying Asakura Yohken with ease. Though not a singular entity like the Oh-oni, these creatures seem to employ underhanded tactics, striking Yoh with an arrow while he is distracted.

Anime/Manga Difference
Cho-Oni is a manga only character and never appears in the anime.