How do you beat Yasuo?

There have been irl tests where they attempt to cure cancer by injecting the patient with modified versions of AIDS and it's worked

So who counters cancer Yasuo the most?

Malzahar, SPACE AIDS

Banning is always an option.

you don't git gud

Don't forget Aromatherapy, it helps soothe you

How original, another Yasuo cancer joke! hahaha.

Let's get serious for a moment. Yi is all melee, has great ad and attack speed to match. Come late game (or if fed) he can really turn Yasuo into a pan of sushi.