Goristro

I'd never fight one, they are as large as a building and as mean as a Dragon whos hoard was stolen. Worse is when other demons ride upon them.

Goristro are large, monstrous Minotaurs made in service of Baphomet. They are living siege engines used by the Demon Lords to breach walls and castles and some of the largest are fitted with Palanquins that other demons or mortals who serve demons ride upon and rain spells and arrows from.
Goristros are among the physically strongest of demons but they are dim witted and easily manipulated, though when mistreated their anger can overpower their masters.