Every change/buff to champions is MORE DAMAGE!
And every nerf is like - 5 movement speed or so, nothing to deal with damage. Idk why is too hard to nerf Kassadin lvl 16, 50 dmg on R or so. Mordekaiser's movement speed and passive duration were clearly problem too and not his damage. Riot balance team worked really hard to actually enjoy their new Mortal Combat game they made.