The Fairly OddParents S04E06 - Power Pals

Fed up with Timmy constantly taking advantage of them and treating them like slaves, Chester, A.J., Sanjay, and Elmer break off their friendship with him and form the "Anti-Timmy Force Four". In retaliation, Timmy wishes for new superhero friends to make them jealous. However, when his new Power Pals begin to take advantage of and mistreat him in the same way, Timmy has realized his mistake, especially when they mistake his old friends for supervillains and plan to kill them.