Idea on how to Nerf Ekko
A big part of his kit is his W passive, additional damage on targets under 30% health. No doubt removing it would take away Ekko's burst and clean-up potential. However, there might be a way we change it so it isn't so powerful.
Think about Zed's passive for a minute. Added damage to enemies under 50% health that *cannot affect an enemy more than once in a certain amount of time. Ekko on the other had applies it on every hit.
My proposed change is the Ekko's W passive is moved to his E active. The blink-attack will deal X damage plus addition damage based on targets missing health. This gives him the burst back but not the consistant 200+ auto attack damage, however, hurst his team fight clean up ability (If anybody has an idea on fixing his clean-up please share. If anybody thinks he shouldn't get clean up also tell me). Not that this will also effect his ability to cs.