Toadblatt's School of Scorcery/Educating Grim/It's Hokey Mon!

Plot:

Mandy's arch nemesis, Mindy, befriends Grim. But is Mindy all that she seems? Grim brings Billy and Irwin's monster cards to life! Grim gets Billy and Mandy into Toadblatt's Summer School of Scorcery!