Longtime player’s first impression of moors problems at a glance would be that is stems from severe power creep across updates coupled with no rebalancing for moors. A simple blanket solution would probably be to reduce outgoing dps AND heals by 50% or more for all characters inside as a debuff. This would reduce the one-shot capabilities, and the insane healing. Allowing a few moments to respond/react keeps fights interesting opposed to one side getting wiped in 20 seconds.