Help me name the Mickey Mouse story that I read 1000 times in my childhood!

I’m looking for a Donald Pocket comic that contains a story with Mickey Mouse as the main character. In the story, Mickey, Donald, Goofy, and Clodrik are knights who participate in a tournament organized by Uncle Scrooge, the king of the city.

A duck named Brigitta tries to marry Scrooge and buys a love potion that doesn’t work. A wizard causes machines, scrap metal, and other materials to turn into “evil” knights. The wizard lives on the moon, and Mickey and his friends try to stop them. Mickey gets a magic potion that turns the metal knights good again.

There is a mysterious black knight, and his armor turns out to be empty inside. Gyro Gearloose (Petter Smart in Norwegian), a scientist/wizard in the story, discovers that the signal comes from the moon. Gyro has an assistant named Batty (Flagre in Norwegian), a screen with bat wings.

The story also includes Huey, Dewey, and Louie, who meet a girl. She participates in a competition where they ride and try to catch rings, but she doesn’t win because she is a girl, which she thinks is unfair.

Other characters include Donald, Scrooge, and Clodrik