Born entirely from the Witch Freetext Challenge
7 Generic types of witches for the Kill All Witches setting
A 'trash golem' created by witches in the Kill All Witches setting
A psilogist is a man who studies witches and witchcraft in the Kill All Witches setting
A foe intended to be used in a Witch Hunter or Kill All Witches type game
"Yes, there are some unusual patterns to these - her patients, but we have nothing to prove anything other than statistical anomalies."
A PC Conjurer or summoner, basically any mage whose sole purpose in life is summoning creatures to aid in battles and various situations, is cursed with a hex, and needs to find a way to undo the curse...before he goes mad, or his fellow PCs throw him out of the party, or worse.
Everything he/she summons, never goes away. So you'll have to figure out what the heck to do with that dire bear or fire elemental once it's done fighting the orcs for you. Eventually a caravan of bizarre creatures either annoyingly ends up following the summoner around, or they go off to cause mayhem elsewhere. Bad news for the poor spell-caster regardless.