Ed, Edd n Eddy (1999)

S4E17 Robbin' Ed

After a hero continuously thwarts Eddy's schemes, he decides to turn the tables and transform into a villain himself, determined to eliminate his nemesis. Eddy's newfound dark persona is fueled by his desire for revenge against the hero who keeps ruining his plans. As he plots his next move, he dives deeper into the world of villainy, hoping to outsmart his opponent once and for all.