Arc blade is over powered in PVP, almost everybody agrees on that, and so is the titan smash and the bubble shield. Particularly when any of these things are used in Control, where teams are constantly forced to congregate in a small space to either take a zone or hold it. You have no choice in that matter, you can't take a zone from 50 feet away. Titan runs in around a blind corner, smashes, and everybody instantly dies, period. Hunter arc blades into a room around a blind corner and everybody dies, 80% of the time. At the very least the smash needs to be changed to only kill things that are on the ground , and damage should be dramatically reduced or eliminated for anybody in the air while smashing (height could be factored in too possibly). That, or the damage should be dispersed amongst the enemies within the range of the smash. One enemy in range = instant death, two = health down to critical level, three = half health, etc.. The bubble shield also lasts way too long, 10 seconds would be more than long enough. Ideally it should also be color coded to the team, so you know whether it's your team's bubble or an enemy's. I currently have a lvl 29 Warlock and a lvl 25 Hunter, and I'll make a Titan at some point, but I'd feel the same way regardless of which characters I had and what level they were.