The problem with the bubbles is that it is now a perfect defense against 6 out of 10 classes.
The problem with that is that the swords suck ASS. No, I don't care that you had a blanket excuse.
No they don't.
They just encourage saving up an enormous amount of built-up energy. If a quote gets between you in an arena match, you're fucked, because even if they do only five damage, the insane knockback would seperate you, and if you're low on ammo, there's nothing you can do about it.
Do you know how hard it is to shoot while you're moving in the oppisite direction you're aiming? Coupled with limited ammo, and you have one OP character.