King Man

"You know, believe it or not I'm not really a beggar, I'm actually a... MAGIC MAN!"

Magic Man (also known as Mysterious Man) is the main antagonist of the episode "Freak City." He poses as a homeless man to travelers, begging for food. If someone gives anything to him he'll do them "a mystical magical favor" in return by turning them into mutated freaks resembling body parts. He is a gaudy and jolly soul out to teach "a magical life lesson," that he's a jerk. Magic Man winds up cursing Finn into becoming a giant foot, making him depressed. With the encouragement of Jake, Finn overcomes his depression in the end and helps the other freaks Magic Man cursed to beat him up. Magic Man eggs on the freaks to riddle out what deep lesson he wishes to teach them with his spells as he does battle with them. Finn thought it was a message on teamwork, confidence, or charity. In the end, the lesson that the Magic Man is trying to teach is to not help anyone at anytime, and he turns the freaks back after Finn states that he should've never helped Magic Man. He teleports away in the end to find more suckers to transform into freaks.

Appearance
Magic Man is a humanoid that has green skin and wears brightly-colored, tattered yellow clothes and a matching yellow wizard hat. He also wears mismatching boots, with one boot being purple and the other red. His eyes are white, like the Ice King's eyes. While disguised as a beggar, he covers himself with a tattered brown blanket that hides his features. He is one of few characters with a nose. Magic Man is smiling constantly when not in his beggar outfit.

Abilities
Magic Man has a number of magical powers, including the ability to transform people into body parts and back, teleport, throw energy bolts and magic confetti, turn birds inside out, and create portals. He can create fireworks that spell out the words "EAT IT." Magic Man isn't exactly seen "fighting" (the only magic he uses on the freaks is harmless sparks and confetti, along with a taunt), but he seems to be adept at defending himself in combat. He protected himself from Gork's lava blasts by conjuring portals and redirecting it behind him. He also was able to quickly recover from being punched and launched a great distance by Zap, making a perfect landing. When he changes the freaks back to normal form he appears to do nothing but lightly clap his hands, suggesting it took little effort. In light of how carefree he was about the fight, it is likely the Super Freak wasn't really a challenging opponent for him.

Quotes
"Food for a beggar? (grunts) Food for a poor old man? You gave me that candy, now I'll do you a favor in return! A magic favor! A mystical magical favor! For you! Because this day, a magical life listen comes to you."

"Not until you appreciate what a jerk I am, wazoo!"

"Come on apple-grease, what are you gonna do!"

Trivia

 * He is set to appear in a season 4 episode.