Okay, just found a Gorgon. It is a variant on the beholder. It can summon snakes, turn things to stone with its eye beams, and give curses to enemies. It also has poisonous breath if you melee it. For a funny thing, when it turns an enemy to stone they still do their idle animations.
I guess that could be considered a bug. Another bug I found is if you use the Mystic's mind control on a griffon, then use Split when it's your turn, you get to keep the other half of the stack for the fight (the mind control debuff doesn't travel with it) and at the end of the fight it just adds the number you got to another stack (I ended up with an extra axe thrower and a rebellion debuff due to not enough leadership). Maybe someone will start a bug thread (/dies).