Goto Imasuji

Muscular (血狂いマスキュラー) is a villain affiliated with the League of Villains and also part of its Vanguard Action Squad.

Appearance
Muscular is a tall, bulky man with spiky blond hair. He has an enormous scar on his left side of his face that reached from his front to his mouth, he had lost his left eye and replaced it with a prosthetic one.

His outfit consists of a black cape and a mask with several small holes in it. Underneath the cape he wears a red tank top and dark-colored pants and boots.

Personality
Muscular has a very cruel, brutal and blood thirsty personality, showing great pleasure in killing people, heroes and civilians alike, even including young children.

History
At some point in his past, Muscular fought against the hero team Water Hose, killing them. He was, however, gravely hurt during the conflict, losing his left eye and acquiring an enormous scar on his face.

Quirk and Abilities
Muscle Augmentation (筋肉増強): Muscular's Quirk allows him to augment the muscle fibers that are beneath the skin, increasing the power and speed of his movements. He has also been shown to use his quirk for defence; by carrying his whole body in augemented muscle fibre.

Immense Strength: Muscular has shown extreme levels of physical strength. Even without using his Quirk, he is able to send Izuku flying with remarkable force with merely a simple kick. When using his Quirk to augment his strength, he has shown to be able to easily shatter rock and overpower Izuku with minimal effort, even when playing around. After going serious, his reinforced strikes were able to cause destruction on a similar scale to Izuku's 100% Detroit Smash. He was also able to directly overpower Izuku, who was using One For All 100% at the time, in a physical clash.

Immense Durability: Muscular was shown to have a frightening level of imperviability to physical harm. When using his Muscle Augmentation, he was able to take the full brunt of Izuku's 100% Detroit Smash with minimal injury. Indeed, he was incapacitated only after Izuku went beyond his limit with One For All.

Enhanced Speed: Muscular was shown to be surprisingly swift. He was able to catch Izuku off-guard several times during their fight. When using his Muscle Augmentation, he can launch himself off the ground at blurring speeds.

Equipment and Weapons

 * Prosthetic Left Eye: He has a number of different replacements with unknown capabilities.

Battles
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School Trip Arc
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 * Izuku Midoriya vs. Muscular: Lose