Just like how their is drawback and insanity, I have thought of more stats with downsides.
Immobility
This stat appears on items that appears to be heavy or have a lot of protection/less wiggle room, usually appearing on very high defense armors and is unlikely to appear on anything else, will never naturally appear on agility armors.
Immobility gives slower cooldowns do to lack of the ability to stretch. the amount it is slowed by is based on the ultimate art of the attack (will explain later). cosmetically if you have a piece with immobility as vanity, when you walk (not run) you leave deeper footprints and slightly slower walk speed. no speed reduction while running
just like old drawback, it gives 1 stat which has bigger number (old drawbacks 1 → 3) so 1 immobility = 3%, but immobility 2 gives 9%, 3 gives 27%, 4 gives 50%, 5 gives 75%, and 6 gives 100%, anything else above keeps adding by 25% (8 is 150%. Now what are these for? lets say you have regular crash and 6 immobility, 6 = 100% of the ultimate art of crash, so regular crash CD + crash ULT art CD = new cooldown. (i can clarify in comments if it not make sense)
Can be obtained as an enchant from padded (rare scroll which gives 1.7x the amount of hard because armored gives 2x right?) and plated (1.5x as much as armored). future enchants will have stuff to do with losing space in the armor for their name (like reinforced or dual plated). this will allow more build variety as some builds may not need their cooldowns to be short, but mostly can remove mix-up as an option.
Deficiency
Appears on items with more Intensity, Attack Speed, and Attack Size than normal
for every 1 you get 5%. that 5% is 5% your total energy bar on top of what your regular cost. every 10% you get slower regen by 5%. if you get to 100% somehow, it just takes the whole bar and slows regen by an additional 20%
Enchants are clouded (intensity 1.4x as the exotic), hyper (attack speed 1.4x as the exotic) , and overcharged (attack size 1.4x of the exotic)
everything can be edited so please, tell me. i think this would make more unique builds that are stronger, but might require more skill (for immobility at least due to less mix-up)