[{quoted}](name=Pika Fox,realm=NA,application-id=3ErqAdtq,discussion-id=Tv86tpGi,comment-id=000200010000,timestamp=2018-06-22T19:39:22.107+0000)
Hit him with any single spell. He has like 1500hp and like 30 resists. Maybe 40. 3 full expensive items + boots and nothing to survive? Not even a QSS? He should be dead before he even gets near you.
Thing is, he is usually 2-3 levels above everybody else and has very high scaling base stats, coupled with slow/disable immunity, untargetability, 2.0 attack speed without attack speed items and so high movement speed nobody can outrun him.
You wont have the damage to burst him down. By the time you get this damage, he typically has more of his build filled in - with items that provide health and resistances, negating your burst damage.
"He should be dead before he even gets near you" He ults, flashes close enough to Q on top of his target and kills them in three basic attacks - roughly 0.4 seconds. He also has four teammates you have to worry about as well, which may also require whatever cc your champion has at hand.
Point is, at the moment counterplay to Yi depends solely on Yi making mistakes. You can't outplay him because he outstats everybody else than Fizz and Camille - even Jax struggles against him.