Casting process is verbal and somatic.
Charisma, Wisdom and Air doctrine help in casting this spell.
Primary: wisdom Secondary: constitution Tertiary: charisma
With this spell a priest can cure diseases ailing other persons. Succesful curing gives the priest a small amount of experience, while failing to cure the disease causes it to infect the priest too. Chance of failure is dependant on how tough the disease is. The priest can specify what disease is to be cured. If the patient has several diseases and no disease is specified, the spell affects a random disease. Greater purgation is the most potent of the disease purging spells, and the most taxing and difficult to cast and learn.
Usage: cast greater purgation at <player> [disease]