Bucaphi

Bucaphi is one of the Geniuses of the Tenth Hour and the Genius of Witches. She is one of the most important Geniuses, known as the "Queen Mother of the West" to Papus.

Appearance
Bucaphi has the appearance of a giant anthropomorphic tiger and wears an ornate regal dress.

Synopsis
Bucaphi coincidentally met Krusty in the Prison of Time following Takayama Misa's weapon, Calamity Hurts, going awry. When he refused to become her servant, she placed the Soul Darkness Curse on him and banished him to the the Zhongyuan server.

Krusty, Tycoon Lord arc
Bucaphi appears at the end of the arc, greeting Krusty, the members of Kanami's Party, and several Lelang Wolf Cavalry members at the site of the Ritual of Coronation. Although they all unleash their most powerful attacks on her, she retreats to Kunlun before they can seriously damage her.

Because her curse prevents him from leaving the Zhongyuan server, Krusty plans on going to the moon and killing her to remove it.

Abilities
Bucaphi, at Level 150, has immense power that far overwhelms even the strongest Adventurers. She also has the ability to create status effects that didn't exist in the original Elder Tale game, such as the Soul Darkness Curse that she inflicted on Krusty, which stole his memories, blocked HP recovery, blocked use of telepathy, and prevents him from crossing server boundaries. In the anime, Shiroe recognizes this as an indication that the Geniuses are able to manipulate the Elder Tale game system to wreak havoc.

Despite the sheer power and penalties that come with this curse, it has its limits. Because Bucaphi forced this curse on Krusty and he never consented to receiving it, he finds ways to to work around its fine print within the constraints of the Elder Tale system, as seen from how he takes his memories back and steals HP from Papus, a Genius monster, with his battleaxe.

Trivia

 * In the Nuctemeron, Bucaphi is the Genius of Stryges.
 * Although Hua Diao recognizes Bucaphi as the Queen Mother of the West just like Papus does, she does not respect the authority of the Genius.