Remove the Interruption from Camille's ult.
It's an unnecessary mechanic that just adds another layer of stupid to an otherwise solid ability. It only serves to remove valid counterplay for numerous top laners. "I don't want to lose a fight" buttons are horrendous, just look at pre-rework Irelia's stun ability.
I seriously doubt it effects many of her matchups, but it gives tanks a tad few more options against her.
(Did I mention that her True damage Q converts all outgoing damage into True damage as well?
included.)