|One Crazy Summoner|
|Series||The Grim Adventures of Billy & Mandy|
|Writer|| Maxwell Atoms
|Cartoon Network US Premiere||August 5, 2005|
|Paired with||Guess What’s Coming to Dinner?|
My Fair Mandy
Guess What’s Coming to Dinner?
One Crazy Summoner is the 16th episode from season 5 of The Grim Adventures of Billy & Mandy.
Nigel Planter needs help from Grim, Billy, Mandy and Granny Grim to win a girl's heart,(whom of which seems to be a spoof of Hermione Granger,from Harry Potter)Through a series of trials,love potions,spells, and the rivalry between Nigel and Dorko Mouthwad (A spoof of Draco Malfoy) for Herfefiny's heart. In the end doorko gets the girl, and nigel falls in love with his chocolate.
- Story by: Maxwell Atoms, Mike Diederich
- Storyboard by: Mike Diederich
- Art direction: Rae McCarson
- Directed by: Juli Hashiguchi
- When Billy was giving Nigel ideas on how to get Herfefiny to like him, he suggests giving her a noogie or throwing a kickball at her, explaining that that's what the boys at his school do when they like a girl.
- Even though Nigel's father was seen, in his next appearance, he's said to be dead.
- It is possible that he is Nigel's adopted father or that he died sometime after this episode.
- This is the last episode to feature Dean Toadblatt with his original design and voice actor.