Talk:Katarina/@comment-26808509-20180730153010/@comment-25847685-20181116232725

It also doesn't account Magic Resist, Armor Scaling, or Electrocutes Adaptive Damage, these are the reasons people don't build AD.

Most Champions Armor pass MR at level 6. From this point forward, AP is superior because Katarina very much cares about damaging champions into their lowest armor rating, instead of a high Armor value.