Ekko Balance?!
Riot, are you trying to say Ekko was a little broken? He was obscenely broken. If the solution to dealing with him is to learn how to play against him, then fine. But while I have him pegged (usually), most of the players at my Elo can't help but feed him. I know you're concerned about the state of professional play, but lower-level play is suffering because of this guy.
So what do you do? You concede his brokenness (kind of) and then give him a slap on the wrist? You didn't even touch one of base damages or AP ratios. And if you're worried about his early game, then leave all that the same and just nerf his mid and high ability levels. AND GIVE HIS ULTIMATE A MANA COST. HE HAS A FREE HEAL THAT REWARDS HIM FOR GOING WAY IN OVER HIS HEAD. The amount of freedom he has to dive and tear up back lines with relatively little risk is just insane.