This Katarina guide is for those who know what's going on with the general's young and deadly daughter. You must be quick, stopping only to evaluate the kills that lie ahead. With this setup, you will pierce 49 of the target's magic armor, and an additional 10% after that. Between the Abyssal Scepter and Mercury Treads stages of the item build, you'll be piercing 69+10% magic armor! The only reason to switch kicks is for survivability.

If it is requested, I will add more information.