As my boys on Reddit said to Jagex a while back. PvM content is getting a lot harder, with our current system we're getting stuck. What I'm proposing? An evolution of some sorts, I had the idea of unique abilities and @
casual
suggested they should work off some type of adrenaline bar; the more full the bar is the better the ability you can use. Idea is still a WIP, let me know what you think.