High Materia: A concept to allow for some player agency, without destroying balance

[Burmecia]

Just read it

Embarrassing editing mistake on my post. Meant to sat: "It doesnt matter if the DPS gain would be just indirect."
Makes more sense, yes? Any/many of the defensive ideas can be used in offensive way, if DPS/Tank/anyone can use them to not lose uptime.
I have no interest in beginning to think op's idea very deeply. It seems fun, it would make lot of people rage, it would be deleted eventually because of it would make balancing hell.
Many of the presented ideas in OP would make more sense as traits if we absolutely would need to have any of them.