The stacks should be persistent. No timers.
Self Healing of any type removes the stack. You can still be healed by others and keep the stack. (Rofl I put any 4 skills used, I meant any DD 4 skills sued. Just imagine HEALING and burning light going off that would be devastating .Although it would make people think twice before rushing you lol)
If ranged moves are used it goes off in the vicinity where the ranged attack hit....
Must be 4 attacks...meaning you cant just hit 4 skills in air and expect it to go off.
PVE no problem....
PVP it gives me options...DEPTH....CLASS IDENTITY!!!