You'd cheer anything which changed her personality, up to and including decapitation. An evil wizard agrees and gets her hooked on a magic potion. He-Man, who secretly hides from his friends to inject magic strength-boosting power into his body with a pointy metal implement at least once every 27 minutes, disapproves. He also forcibly injects a friend against their will so that they can have a better time together, making him the Titanic Team-Up version of date rape.
Not pictured: consent.
He couldn't have been more hypocritical if he'd started campaigning against fur and public nudity, and his brilliant plan is to call the dealer and start a fight. WARNING: THIS ONLY WORKS IF YOU'RE ACTUALLY HE-MAN. Having defeated evil magic and common sense, He-Man then dares logic to kill him by staring directly at the camera and saying there's no such thing as a magic solution to all your problems.
Fortunately, irony bounces off He-Man like lasers and homoerotic subtext.