Sword Devil Executioner

Sword Devil Executioner was a member of the Monster Association.

Appearance
He had a short stringy beard and his hair was long giving him an aged look. He had 8 eyes, wore a set of spiky armor and wielded a sword of similar aesthetic.

Personality
He was a rather arrogant monster, believing himself to be an equal to Atomic Samurai. He is also very dedicated to his swordsmanship, determined to be the greatest swordsman in the world.

Monster Association Arc
When Atomic Samurai is killing several monsters with his Flash Attack, Sword Devil Executioner manages to block the blow. The hero is surprised by this, and Sword Devil Executioner goes on to explain his determination to kill Atomic Samurai, as defeating the hero would help him on the path to being known as the world's strongest. The monster then launches several swings, which Kamikaze effortlessly parries. Sword Devil Executioner boastfully claims that they are equals, but he is quickly proven wrong when Atomic Samurai slices him into several pieces, killing the monster.

Abilities and Powers
Though his disaster level is unknown, Sword Devil Executioner displayed a reasonable amount of skill and power. He is rather proficient with his swordsmanship, being the only one of several monsters who was able to block Atomic Samurai's Flash Attack.

Physical Abilities
Enhanced Speed: Sword Devil Executioner was able to react fast enough to avoid death by Atomic Samurai's Flash Attack. He was also able to trade blows with the hero for a short while, albeit ineffectively.

Fighting Style
Expert Swordsman: Sword Devil Executioner dedicated his life to the sword, though he was no match for Atomic Samurai.

Equipment
Sword: Sword Devil Executioner carried a sword on him and was proficient in using it.

Trivia

 * His name is a pun. ブッタ = 豚 (Buta), which in this context means "pig/pork", think of it as a derogatory way of referring to humans and human flesh. ブッタギリー (Butagiri) = 人斬り (hitokiri), which means manslayer or assassin, e.g. Kenshin from Samurai X.