Go get a good shotgun, like verdict, using warlock sunsinger, self revive, and the flame shield, keep bouncing around the boss n see how long you can survive while inflicting then most damage you can. Obviously with friends or what ever so they can stay alive long enough for you to res yourself.
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Edited by TeeUhMatt: 12/3/2014 4:34:40 AMI did this on phogoth with the comedian I'm a hunter too