Stopping Yi's Ult

Hard CC: Stuns, suppressions, knock ups, any CC that isn't a slow.

Stuns, knock ups, roots.

Fiddlesticks fear

2spooky

Death Also, hardCC.

Any form of CC that is not a slow.

any of the champions that immobilize, stun, or knock up.

If you die he can't attack you ;) only way i found yet

Any kind of cc that isn't a slow. CC with a slow attached (like fear) works too.

is a good one

If the enemy team picks a Yi, (and I am mid lane) I immediately lock in Ahri.

She herself is a strong pick, but I personally really like her because she can kill Yi. Specifically in silver and such. I am silver, but in almost every game I have played I have no issue landing my charms on Yi. Once he is charmed he is usually dead before it ends. I love Ahri. Sure she is skill shot based, but her charm is really underestimated by people. Course you have to land it >.<

Anyway. with Yi and his ult, your team has to have some sort of solid CC. Like Olaf you cant slow him, but you can fear, charm, knockup, stun him. There are plenty of things you can do.

The real issue is in my experience in silver and bronze, people pick champions to "counter their lane" or who they personally enjoy. They do not pick champions with the entire enemy team in mind. Instead at the very most they just focus on their lane opponent. Which leads to plenty of games with virtually no reliable CC to use on such champions like Yi. Then people wonder why he just wrecks through your team. Answer? Not a single person on your team bothered to draft with the whole enemy team in mind.

With how strong a 30min + Yi is, your team could be up for 4000 + gold, but if you didn't bother to bring a single reliable CC ability, you will likely lose the game. It wont matter if you are up by 10 kills or not once Yi comes online.

Just any and all CC that is not a SLOW. Charms, Snares, Stuns, knock ups, ect. All the things that can just stop you in place, move/displace you and so on.

Hard CC

That use to be Valor's job... It would be hurry and build then use valor ult to out dual yi... Which Valor would EVERY TIME!!! But now.... Since there is no more Valor ult... Guess you'll just have to build... om.... well....

I don't exactly understand what you mean by " stop " Yi's ult. The only thing that actually stops it is giving him a gray screen

Ranged adc Players - (she can tumble thru' thin walls) have some kind of dash/tumble mechanism to run away. Hard CC, invisibility/untargettable item/ability like , , , E, Q, Q , E, E,

Silence abilities Like Q, W are useless against him 99% times, Yi is all about AA not abilities.