I read the movable bubble, but I never really understood the point, and now that rift is a thing that makes less sense to me. I've always wanted a poison option to the bubble, there is not really any kind of 'penalty' for walking in the bubble. I would maybe even think of a perk along the lines of *Impermeable* enemies cannot pass through your bubble, reduces the duration and strength of ward of dawn. Though that would mean you don't have weapons/blessings, so it's more of a risk to leave the bubble to challenge enemies, but it would be good for control. The bubble should also have some kind of visual cue that you can't pass through it. Edit: Just thought of the situation of the control point in trials, this would be impossible to defeat and virtually guarantee the win if you got to that point. Maybe needs some tweaking. Just an idea I threw out there.