I'm a maxed defender and I wreck in control. I've learned to not necessarily drop bubble on the point though. When you have a maxed out Helm of Saint-14 so enemies are blind when the go through the bubble you can drop it on a key choke point and use that to control a portion of the map. Weapons of Light is always good, or Blessing of Light. Also magnetic grenades, and high intellect and discipline. Lots of bubbles and explosions. I'd suggest give it a try.