Muscular

Muscular is a villain from the manga/anime series, My Hero Academia. He is a villain affiliated with the League of Villains and its Vanguard Action Squad. He serves as the main antagonist in the School Trip Arc.

Personality
Muscular is a complete sadistic, blood thirsty man. He shows no mercy to anyone and is willing to kill anyone, regardless of who they are. This includes even innocent people and children. He is not a very bright man, however, as he is the one that accidentally revealed Bakugo's kidnapping.

Powers and Abilities
Muscle Augment: Muscular's Quirk allows him to augment his muscles under his skin, granting him immense power and speed. He can also augment his entire body, in order to provide him protection.

Immense Strength: Because of his Quirk, Muscular has a high degree of super strength. Even without his Quirk, however, he is still a powerhouse, as he was able to knock back Izuku Midoriya with just a kick. When using his Quirk, he's capable of shattering rocks and overpowering Midoriya with ease.

Immense Durability: Muscular's Quirk provides a high degree of durability. Even after using 100% of his power, Midoriya was not able to harm Muscular with major damage. It took him more than 100% of his power to put Muscular down for good.

Enhanced Speed: Muscular's Quirk provides him extremely fast movements, as he was able to catch Midoriya off his guard many times during their fight.