AD CDR Katarina Top Guide! 3s CD Shupo OP - Mazrim Master Tier Kat main
/ mazrimlol
Few quick things not mentioned in video as well
Take Teleport-Ignite, your e goes on such a low cooldown so quickly it is the best combination by far of summoners, teleport-exhaust another option but rarely as good.
You max w-e-q, take only 1 point in q at level 3 it quickly becomes irrelevant so look to jump on someone with your e instead of Q'ing first a lot of the time as e has a longer range