From Dark and Darker Wiki
Textbook IM game design of a boss. Makes melee combat unreliable and projectile damage useless, giving warlock yet another boss it has exclusive rights to farm. All while gate keeps the boss behind a mandatory wait condition to get to its floor meaning that if you waste 100 hours of your life trying to do this boss on another class besides warlock, about 90 hours of it will be waiting at the fucking door. Fuck you sdf.