Rhino Wrestler

I’ve been training day and night in order to become the world’s strongest - in order to prove I’m the strongest! This singular desire is enough to keep me burning!

Rhino Wrestler (サイレスラー, Sai Resurā) was a Mysterious Being and a member of the Monster Association. He was killed by Atomic Samurai.

Appearance
Rhino Wrestler was a humanoid biped creature with various body parts characteristic of a rhinoceros. He had the head of a rhino and was heavily built, with many layers of thick skin and armor on his body. He wore a wrestling singlet and had an armband on each arm. On his abdomen was a large tattoo.

Personality
Rhino Wrestler was very prideful and eager to put his strength to the test. In addition, he desired to be praised by others. A testament to this can be seen when he asked Phoenix Man what he thought of Rhino Wrestler's disaster level.

Like most other prideful monsters, he didn't care about compatibility with other heroes, with his only style of fighting being knocking down whoever comes in his way.

Unlike most other monsters, Rhino Wrestler actually trained to hone his fighting abilities.

Monster Raid Arc
Rhino Wrestler, Phoenix Man, and Sludge Jellyfish stop Mohican and Pineapple when the two heroes were trying to leave the city with the soon-to-be hostages. Rhino Wrestler is left to the heroes by himself while the other monsters scout around. Rhino Wrestler is utterly bored by his opponents' pathetic attacks and decides to rate their attacks and scores all of them very lowly.

After his rant about the heroes' strength, Rhino Wrestler boasts about his training towards his opponents and expresses his utter disappointment in the heroes that he is facing. Phoenix Man alerts Rhino Wrestler that it is time to leave and to take the hostages. In addition, he reminds Rhino Wrestler that today is not the "main event", so they can't do as they please. Finally, Rhino Wrestler is told to only take the son of the Hero Association sponsor. Mohican and Pineapple make a final desperate attempt to stop Rhino Wrestler, but fail miserably as Rhino Wrestler is able to easily charge through them. Afterwards, Elder Centipede grabs Phoenix Man and Rhino Wrestler and leaves in the hole he created earlier.

Monster Association Arc
In the Monster Association, Maiko Plasma, Electric Catfish Man, and a few other monsters are discussing amongst themselves, while Rhino Wrestler is training. The other monsters are impressed by the victory Maiko Plasma and Electric Catfish Man had over Lightning Genji. The pair of monsters states that Gyoro Gyoro was the one who ordered them to fight Lightning Genji, and that as long as the monsters fight who Gyoro Gyoro tells them to fight, they won't lose. Rhino Wrestler interjects and states compatibility as "stupid". He boasts that he will knock down whoever comes in his own way, and completely destroys the punching bag he was using to train, reveling in the knowledge he will soon prove his strength. Prior to the monster raid, Rhino Wrestler goes to Gyoro Gyoro and asks him if he was still Tiger level. Gyoro Gyoro replies by saying when he first met him, he was, but after his training, he had progressed to be a Demon level threat. He said he wanted to see Rhino Wrestler fight as soon as possible. Gyoro Gyoro then continues by saying among the many monsters, there were a few monsters who achieved significant growth in a short period of time, and he was pleased when this occurred.

He was one of the second wave of monsters who attacked the heroes. Needle Star is the first to attack, striking Rhino Wrestler with Violence Star attack, but the monster easily knocks him back, rating his attack as a 25 out of 100. Next, Mizuki jumps into the air and attacks him with her Shot Put, but he brushes the attack off, giving her 30 points and prepares to attack her, but Needle Star grabs her hand and pulls her out of way. She thanks Needle Star, and he warns the heroes of his enhanced power. The next one to attack is One Shotter, who fires many rounds in an attempt to break his horn, but Rhino Wrestler is able to see and deflect all of his shots and rates his attack as a 15, leaving him shocked. Rhino Wrestler charges the heroes, with thoughts of his desires to be the strongest running inside his head. Jet Nice Guy attacks his left cheek, but it fails to damage him and he gives the hero 10 points. Then, Shadow Ring strikes the monster with her sword, yet it does very little, as he rates it as only 10 points. Rhino Wrestler yells out for all the heroes to attack him so he can give them all scores, so the next one to fight him is Iaian. The A-class hero unsheathes his sword and strikes his horn, momentarily halting the monster's movement. Rhino Wrestler rates his attack 69 points, and the others see it as the opportune moment to strike together. First, Jet Nice Guy attacks with his Ultimate Jet Straight across the monster's face; next, Double Fall tickles his nose to activate his energy sneeze. Crescent Eyebroll uses his Crescent Consecutive Slashes, while Narcissistoic uses his Rose American Sack attack, and the rest of the heroes join in, but Rhino Wrestler is able to blow all of them away, rating each of their attacks. The heroes are shocked at his power, while Rhino Wrestler reminisces of a moment when Gyoro Gyoro conversed with Rhino Wrestler before the monster raid and how Gyoro Gyoro commended the monster for the increase in strength, and Rhino Wrestler screams out for the strongest heroes to fight him, all-the-while fighting Iaian. Rhino Wrestler is able to hold Iaian back, but before the battle can continue further, Atomic Samurai tells his disciple he would take his place. Iaian insists he can handle it, but Atomic Samurai tells him he will cut off his horn himself. Rhino Wrestler derides Atomic Samurai for fighting him singlehandedly after witnessing him effortlessly handle the other heroes, but he then commends him for his spirit. Rhino Wrestler yells for Atomic Samurai to use his killer move to score, and he throws a punch at Atomic Samurai. Less than a second later, Atomic Samurai tells the others they were done there and it was time to advance, and he begins to walk past the monster. Rhino Wrestler insists the battle isn't over, and demands Atomic Samurai not ignore him. Suddenly, Atomic Samurai remembers what the monster said before and asks Rhino Wrestler for his score.

Rhino Wrestler's eyes widen, and as his horn falls off, he clutches the stub that was once his horn and begins to tremble. He laments that Gyoro Gyoro lied to him, as he stated Rhino Wrestler was "strong enough to defeat the S-class". His final words are rating Atomic Samurai's score a 100 out of 100, before he is sliced into hundreds of tiny pieces. Atomic Samurai thanks Rhino Wrestler for his perfect score before moving on to kill the other monsters.

Abilities and Powers
Rhino Wrestler was a very powerful monster, capable of overpowering multiple A, B, and C-Class heroes simultaneously with ease, and was able to fight on par with Iaian, the 2nd highest ranked A-Class hero who has the potential to reach S-Class. However, he was completely defenseless against Atomic Samurai, and was sliced by the hero's Atomic Slash before he even realized what was happening.

Physical Abilities
Immense Strength: Rhino Wrestler possessed enormous strength, strong enough to easily knock out Mohican and Pineapple simultaneously in a single attack, as well as knock back multiple A, B, and C-Class heroes. Additionally, he was capable of breaking apart a series of very large tires chained together into a punching bag with apparent ease. When fighting Iaian, an A-Class hero with potential for S-Class, Rhino Wrestler was strong enough to stop a powerful blow from the hero.

Immense Durability: Rhino Wrestler possessed amazing toughness, capable of withstanding numerous attacks from C, B and even A-Class heroes without any damage. Additionally, his horn was durable enough to take the sword strikes of Iaian and remain practically unscathed, despite Iaian being capable of cutting through Tongara's highly durable battle suit.

Enhanced Speed and Reflexes: Rhino Wrestler was able to perform a series of fast punches while training on a punching bag, and later overwhelmed a large group of heroes with his rapid attacks. He was fast enough to react to the bullets from One Shotter, who used a sniper rifle to attack him, very quickly and deflect each shot with his horn.

Enhanced Growth Rate: Rhino Wrestler has shown capable of rapidly growing stronger through training. By training hard day after day, he managed to vastly increase his strength and even raise his disaster level from Tiger to Demon. Furthermore, as stated by himself, Rhino Wrestler can even get stronger in the midst of a fight.

Fighting Style
Proficient Hand-to-Hand Combatant: Rhino Wrestler preferred close-quarters combat and believed the only effective method is to knock down any opponent that comes his way. He commonly used his horn as both a defensive tool and an offensive weapon. He was skilled enough to accurately judge the techniques of others, and rated techniques of B-Class and C-Class heroes very poorly.

Trivia

 * The tattoo printed on his abdomen "砕" means to break or to smash. It is also a word pun with rhinoceros in Japanese; both are pronounced "Sai".
 * Rhino Wrestler's name and design might be a reference to professional wrestler Terrance Guido Gerin, known by the ring names Rhyno and Rhino.

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