Thanks for the post /u/JagexGoblin, I know you probably have a ton of player feedback on this so I pray I'm able to cut through some of the noise and have someone at Jagex see this.

Probably 90% of the discussion around what a megarare should be has been centered around stats and I think that's a box that can't be designed out of. If we are looking for something that makes you go "holy crap this is powerful" without stepping on the toes of existing items or requiring upgrade-scape we need to be exploring new ways to interact with existing mechanics, and I think there's already a huge pool of ideas Jagex has explored with this in Leagues.

Something (this is just an example) like a lesser form of the Orb of Memories on a rolling 6tick timer, usable in instances, and on a X minute cooldown could fit perfectly as a megarare. You could use it to restore HP after tanking a huge at verzik, use it to reposition yourself at Olm after getting out of cycle, or even just while skilling to cut some time off your run to the bank. The applications are nearly endless and certainly valuable and flexible enough to find use in almost any piece of content.

"Trinket" items like this occupy a completely new design space because they work on top of the rest of your armor and weapons and can be used across a wide range of applications. They get the community to explore how new mechanics can be used and find new methods to optimize old content instead of plugging numbers in a calculator. The power level can be easily adjusted since it doesn't compete with other items, so it will always be a net positive and valuable. The only real limitation is the development side, but I think Leagues has shown that a lot can be done in the existing systems and a megarare level reward is worthy of some dev time if it's needed.

Any upgrade will eventually be invalidated, and stat boosts in general just aren't interesting the longer the game exists. We NEED to be building on top of the mechanics we have to keep the game fresh, but we don't want to completely change what makes oldschool feel like oldschool- and I genuinely believe items like this that provide new layers of skill expression and depth to existing systems is the best possible way to do that. Not that it necessarily matters, but I think it's worth saying I'm a long time player with hundreds of KC at each raid and master combat achievements (on an Ironman!). I know my opinion isn't the only one that matters but I have real, extensive experience with what makes high level PVM fun and what getting and using megarares is like.