If you think Zed is OP, seriously, you're delusional
He's a popular champion that always sits right under 50% in winrate, usually around 47-48%. He has counterplay both in gameplay and itemization. In fact, his teamfight is hard countered by itemization. He's actually one of the hardest champions to play, which isn't relevant balance wise but people like to assume he's face roll. When I die to a LB, Kha, Kassadin, I don't feel like I was outplayed. When I die to a Zed, I know it's because I played it poorly. If you continue to blame the champion, you'll never improve as a player.
In reality, Zed isn't even a top 5 mid laner at the moment. He's fine, stop complaining. And I know, I'm going to get downvoted because the truth hurts and you can't handle it.
burst no counterplay
burst has tons of counterplay