Would it be too much to lower Ekko's passive's slow duration?
All in all, it's not that hard to proc. E, Q, AA. If not, then can we not have it scale so high? An 80% slow late game is a Nasus's wither on a 3 second cd (The time until he can start applying stacks again)
I'm fine with Ekko's damage, but his stickiness is god-like.