The Beastly Transmogrification of the Omnipotent Tchar

Type: Arcane
Arcane Language: Daemonic
Magic: 4
XP: 400
Ingredients: The freshly severed head of a Beastman shaman, a platinum thimble full of warpstone, and two Human sacrifices. The Humans must be a man and a woman and they must not have eaten in at least one week.
Conditions: Four other spellcasters with Magic Characteristics of at least 1 must chant in unison for the entire Casting Time. The moon must also be full and the spell must culminate at midnight.
Consequences: If the Casting Roll is failed, you and your assistants suffer the effects of the spell instead.
Casting Number: 22
Casting Time: 4 hours
Description: If this ritual is successfully cast, every Human with a Will Power of less than 50% and within 1 mile of you transforms into a hideous Beastman for 24 hours. The Beastmen go on a rampage of killing, burning, and destruction, stopping only when they are killed or the spell expires. Anyone who survives this experience gains 6 Insanity Points (half that if a successful Will Power Test is made).