In the case that you don’t know who he is, he is the path 3 boss in Ascalon Catacombs Dungeon. There is one thing that needs to be nerfed on him and that is his screech attack. It has way to wide of a range. I would say somewhere around 280 degree range. Unless your standing right behind him or near there, it hits you can is an instant knockdown. It needs to be changed bad.
We’re aware of this bug and I’ve personally already seen to its fix. He was/is indeed attacking with a 240-280 degree arch from his front, so for the time being you will have to get directly behind him to avoid being hit by the screech. This will be fixed!