Zoe's E needs a nerf, its overloaded.
Something has to be exchanged for its power i would lower the range and raw power a bit also a mana increase per rank. Its basically a 
Q with true dmg on proc and slightly more CD BUT with a built in CD reducer and ANYONE can proc the extra dmg from the sleep effect, additionally with a 2nd chance to proc which is very easy to land in the middle of a team fight.
Its overloaded. [sg-ahri-1]
