Let the Destruction Begin!
Katarina will almost always go mid lane, so in this guide, i will tell you how she can win your lane! Katarina is a snowball champ, you need a decent/good start to do fairly well in your game. Starting off as a mid laner, you will most likely be versing against an AP caster, most of which are squishy, including yourself. You will want to harass to your best, starting off with maxing "Bouncing Blade", you can either shun-po in to a minion just close enough so you can throw it, or just walk right up and throw it then shun-po away before they can react. Once you have done this constant harass, your final blow would consist of this combo; Killer Instincts -> Shun-po- > Bouncing Blade -> Death Lotus. If you can keep up the harass you are guaranteed the kill every time you can pull off the combo. You want to go with the Killer Instincts -> Shun-po first because you want to take them with surprise, while taking less damage if they attack. Then, transitioning to your Bouncing Blade, which deals a heavy amount of damage if maxed, after your W E Q, you straight out ult them. But if your W E Q combo already takes them down to less than 1/4, its obvious you don not need to activate your ult.