I read through your guide and wanted to give you some feedback. I like the concept of a fully offensive Katarina, and I am curious to try your rune page out. However I was a little confused with your choice of placement in masteries. In specific, the utility tree points designated for increasing your mana/energy pool, and mana regeneration. Seeing how Katarina isn't a mana/energy based champion I think your points would be better placed in things like improved recall/death reduction (assuming you are set on going into utility), and movement speed. Also if you could explain your build order, and why you pick the items you do it would help the guide out. I liked how you went over some different lane matchups, and hope you update the guide with more mid lane matchups when you can. I do hope you continue to make guides, and thank you for the read.