Hi all! I'm King Cobra, a Master Tier mid laner that mains Cassiopeia. I have thousands of games on Cass. I'm ranked as the #1 Cassiopeia in the world on lolskill.net and op.gg. I'm making this guide to help players understand this often overlooked champion. She's incredibly fun and insanely deadly in the right hands. >:)
Max out Twin Fang ASAP since it is your primary source of damage. Maxing Q or W second is up to preference. I know some people prefer maxing W for the increased slow utility it brings and others who max Q for increased single target DPS from the poison amplification that Twin Fang provides.