Phoenix Man

Phoenix Man (フェニックス男, Fenikkusu Otoko) is a Mysterious Being who first appears during the attack in S-City accompanying Elder Centipede as an ally. He's a member of the Monster Association.

Appearance
Phoenix Man is a tall bird which resembles a phoenix. He possess big white eyes and his most notable feature are human hands which he hides behind his feathers.

Personality
Not much is known about his personality, except that he's the first friendly monster to appear, not attacking Garou despite his rude attitude against him. When Rhino Wrestler asked what he thought of his disaster level, he remarked that he didn't care. He also seems to be confident in his abilities.

Phoenix Man is also one of the few monsters who appears to show some level of care for his allies. He proposed sending reinforcements to help his fellow monsters, but when it was ultimately denied, he did not argue against it. He would give advice to others, be it monsters or potential allies, that appear to be for their own benefit.

He also seems to have a good sense of judgment and keen intellect. As he was seen taking charge of the situation of their mission and instructing Rhino Wrestler, Sludge Jellyfish, and Elder Centipede. He was also able to figure out Metal Knight's robot was remote controlled and fighting it would only exhaust both him and his teammates.

He is shown to be fearful of Orochi since he plans to quit the Monster Association in case he fails to capture Garou after sacrificing most of the elite troops of the Monster Association.

Monster Raid Arc
Phoenix Man is first seen in S-City accompanied by Sludge Jellyfish and Rhino Wrestler. The three monsters corner Mohican and Pineapple, who are carrying Narinki and his son Waganma. He's seen watching the battle between Garou and Metal Bat, commenting Garou could be an useful asset.

He later tries to invite Garou to join the Monster Association, but it's turned down. He says he'll overlook Garou's rude behavior this time and promises that they will meet again if Garou continues to hero hunt.

After successfully capturing the child, Phoenix Man told Rhino Wrestler to retreat after explaining how fighting Metal Knight would only be in vain for both of them. Phoenix Man instructed a retreat to Elder Centipede, and him along with Rhino Wrestler were taken by the large Monster and burrowed underground.

Super Fight Arc
Phoenix Man took Waganma to the Monster Association headquarters and was commended by Gyoro Gyoro. He informed Gyoro Gyoro about monsters being cornered by heroes and asked if they should send reinforcement, but his request was declined.

Monster Association Arc
During Garou's fight against his former teacher, Bang, and the latter's brother, Bomb, Pheonix Man is sent by Monster Association to rescue Garou with the assistance of Elder Centipede and other monsters.

After seeing Genos, Bang and Bomb's presence, he laments that he cannot approach them to grab Garou without risking death. Phoenix Man considered quiting the Monster Association and fleeing since he will be devoured by Orochi if he comes back empty-handed after sacrificing so many troops of the Association to capture Garou.

After Garou's recovery, Phoenix Man reveals to Garou that Bang, Bomb, Genos, and the rest of the heroes survived the battle with Elder Centipede.

During the Hero Association raid, he was killed by Child Emperor after he activates his utility backpack with hundreds of fighting tools that shreds Phoenix Man into pieces.

Abilities and Powers
As a Demon level monster, it's safe to assume that Phoenix Man is a powerful being. He also seemed to be unimpressed of Metal Bat's and Garou's strength. However, even with the assistance of his teammates, he stated that fighting Metal Knight's robot would wear him down.

Physical Abilities
Flight: As a bird, Phoenix Man has the ability to fly through the use of his wings.

Enhanced Strength: Phoenix Man possesses strong physical strength. With his wings, he can blow a powerful gust of wind that can knock Bang, Bomb, Genos, and Garou off their feet.

Fighting Style
Hand-to-Hand Combatant: Phoenix Man appears to mainly rely on his bird-like attributes and close-quarters combat.
 * Beak Attack (クチバシ攻撃, Kuchibashi Kōgeki): Phoenix Man attacks his opponent with his beak in the form of a piercing attack.

Miscellaneous Abilities
Expert Strategist and Tactician: Phoenix Man takes into account the compatibility and abilities of his opponents, allies, and himself before any potential confrontation. This is first seen when he advised Rhino Wrestler against fighting Metal Knight. He further demonstrated this strategic mindset when he was deciding and waiting for the right time to rescue Garou and when comparing the abilities of Bang, Bomb and Genos against Elder Centipede's.

Trivia

 * In the original storyboard of chapter 84, ONE gave Pheonix Man a technique called Phoenix Flare (フェニックスフレア, Fenikkusufurea), which Phoenix Man used to avoid Genos's barrage.