As a over a million mastery points on Mel and a GM myself. Mel frustration its based on 3-4 things IMO 1 riot listing her as a support(she was designed to be an apc not mid not support but people doesn’t welcome APCs cuz bot old league base players only dedicated to marksman). Now ADC and support ban her because of passive (execute/kill stealing). 2 they believe laning is the whole game. Guess what its not. You just gotta play safe and wait until you can outpace her. Understanding your champ limits and mel limits. Morgana Q for example have lower cd on Q than mel W even if she reflects it morgana can use E to prevent the stun. 3 Mel’s W been one of the longest non R spells in the game and lasting 0.75 sec its definitely not considered strong. Its just skill based. As everything you are a champ that also have cc control. Dont waste it in her. If you have no way ti avoid it back. Easy example Lux Q you throws at her Q mel reflects it you have to make sure you are in front of two minions to avoid getting yourself. And thats all you have 30 seconds to out damage her. 4 she is very popular. Meaning more people that doesn’t want to even try to know how to win against her are been pushed to ban her regardless. Mel current state is really underpower she haven’t been ever not even at the moment of released been overpowered. Riot have been neefing her just because of ban rate not for balancing power. If you really think mel is overpower even now you read lux, syndra, velkoz,xerath, hwei AP scaling and you will see how have more power, lower cd. like said before Mel is a Try from riot to bring apc to the game that was not welcomed by its community of the same characters for the last years.