Erstam's Surprise

Invented by the mage Erstam, this spell has interesting effects.

Casting it causes various effects that are negative for the foes, like Sleep, Poison, Cause Fear and other negative effects. The mage has no control, what effects exactly manifest themselves. The spell essentially is a big game of chance. Interestingly, Erstam himself calls the spell just "Surprise", but notes that others have added his name into it.