Teemo Reworking (along with other champs)

Teemo and several other champions (such as Yasuo and Zed) need to be taken a look at as soon as possible. I know that the dead horse has been beaten several times over, but it's something that needs to be taken care of asap. Teemo's entire kit is built around being annoying. He's a pseudo-ADC who has no real use in team fights other than a temporary blind of the closest enemy. All three of them share the trait of being either completely useless in a game or completely dominating one aspect (anyone been caught in a multi-person knockup into Yasuo ult?). The design philosophy of useless or indestructible isn't good for gameplay, and it's creates characters that generate a lot of toxicity and annoyance. It's why Teemo, Yasuo, Zed, Riven, Master Yi, etc. are some of the most hated characters in the game. What are anybody's thoughts on reworking characters so that they are viable even if they fall behind?

Disclaimer, I have played all of the listed champions before, and been in both situations of being useless and completely dominating the game. I'm not speaking from inexperience or misunderstanding.)