Would a held item that swaps defenses be broken or even somewhat

For what purpose?

I imagine special defensive mons with Calm Mind having some utility with it.

>>30190284
What about one for attack?
Aggron can become a special attacker for what ever reason

phys def florges would be disgusting

>normal chansey with eviolite for special attacks
>physical swapped blissey for physical attacks
>????

>send out Avalugg
>Mankey used Arm Thrust
>Hit two times!
>Avalugg fainted