So...someone thought the solution is to nerf NB mains because they have a shiny toy that everyone wants to play with. That's a real quick way to irritate a lot of your playbase. Grim Focus, in its current form, has been in play for how long now? What should be happening is that the Assassination skill line, and any other skill line for that matter, has subtle and slight changes when used as a subclass to preserve balance as well as preserve class identity. When the skill line is used by the class it belongs to, in this instance referring to the Assassination skill line, it should remain unchanged. This would also provide reason/incentive to run "pure" class builds.