Genbu Gregor

Celestial Retreat Star, Genbu Gregor (天退星玄武のグレゴー, Tentaisei Genbu no Guregō) is a gigantic, Lost Canvas-only Specter, who claimed that his Surplice was harder than diamonds.

History
When Cid went off on a mission to search for the Gods of Dreams in order to rescue the soul of his fellow Sisyphus, he was attacked by a group of Specters, which he defeated easily. Then Genbu Gregor appeared and faced the Capricorn Saint, recognizing him by his reputation as a Saint who trains constantly to improve his blade. After ensuring that the art of the Gold Saint was no match for the diamond hardness of his Genbu Surplice, Gregor launched himself against Cid in a rolling attack. The Capricorn Saint quickly split him in half with a wave of his hand, killing him.

Surplice
Genbu can refer to "black tortoise", a Chinese constellation symbol. It is sometimes called the Black Warrior of the North (北方玄武, Bei Fang Xuan Wǔ), known as Genbu in Japan, Korea and the Hyeonmu Vũ Huyen Vietnam. It represents the north and the winter season. In Chinese, the name Xuánwǔ is translated into English as Black Turtle.

Although Genbu told Cid that his Surplice was harder than diamonds, the Capricorn Gold Saint easily cut it in two with his sacred sword Excalibur, killing Genbu instantly.

Technique
Gregor uses a distinctive technique in his brief appearance, although he does not name this technique. It is based curling up like a ball and rolling at high speed, like a giant ball, and attacking the opponent.

Trivia

 * Gregor is a Russian name that comes from the Greek Gregorios, meaning "watchful" or "one who is ready."
 * Gregor's height is outrageously monstrous, because other specters, or even Cid, are barely tall enough to reach his knee or thigh.
 * Genbu Gregor is a character exclusive to the side story "Saint Seiya: The Lost Canvas".
 * Can be confused: Libra Genbu(Omega).