Anubis

Anubis (アヌビス) is a fictional character in the Shaman King series. The underworld god of Egyptian mythology, he is a ruler of Hell and was the guardian of the Spirit of Rain.

About
As the ruler of an underworld, Anubis uses the scales of Ra to weigh the sins of the dead.

After Hao stole the Spirit of Fire, the Patch Tribe hid the other Grand Elemental Spirits within the depths of Hell to prevent them from being stolen as well. They entrusted the Spirit of Rain with Anubis because he was less well known and was willing to honor the contract.

When Saigan Sati and Team "Myooh" invaded Hell to obtain the four remaining Great Elemental Spirits, Yainage faced off against Anubis in order to retrieve the Spirit of Rain.

Anime/Manga Difference
Anubis does not truly appear in the manga and both anime series.

Trivia

 * In Ancient Egyptian mythology, Anubis was the god of death and the underworld before it was changed to Osiris and Anubis became his subordinate.