just wanna point out that dancers get a quick 1k potency aoe on a short cooldown staggeringly early and that content at those levels is absolutely unprepared for already, but the guage and having skills spend based on their power is a great idea for both the resource-management and power-balance side.
and the idea for a timed enemy buff preventing status re-application is a much more forgiving way to handle the current resistances system and their debuff list (you get three uses of that status effect and then it's a dead skill on your hotbar the rest of the fight). if BLU statuses were able to bypass base resistance but only on a timer that'd be a nice QoL--a quick and dirty alternative might be something like SCH's emergency tactics, being a ~20s cooldown that would let your next spell bypass enemy resistances (but not immunity).