Zoe's E had/has the potential to be a really interesting ability

Sleep as a mechanic/form of CC could add a lot of depth into how you play with/against her and how she interacts with the game. It's a type of CC that makes it so as long as no one hits you, you can't do anything. The potential strategic applications with that kind of power and how you could effectively isolate enemies/force outnumbered fights without having to kill the enemy seems like a really unique thing that Zoe could have had to her herself instead of it just being a "oh i got hit with this ability from literally the other side of the jungle, guess I'm dead" kind of ability. I dunno, maybe I'm just being a scrub, but it seems like kind of waste just to make it another damage amp when she already has a damage amp in her passive.