And the Master Yi runs up to you, Highlanders, and starts attacking you. Your flash is on cooldown. You've been a bit careless and pushed a bit more than half the lane.

You are one of the following champions:
Amumu
Caitlyn
Cho'Gath
Darius
Diana
Dr. Mundo
Draven
Fiora
Galio
Gangplank
Garen
Heimerdinger
Jarvan IV
Karma
Karthus
Kayle
Kog'Maw
Malphite
Maokai
Miss Fortune
Mordekaiser
Nasus
Olaf
Orianna
Pantheon
Rengar
Sivir
Soraka
Swain
Trundle
Urgot
Viktor
Warwick
Yorick

What do you do?
(Keep in mind of one of the champions has a dash, Yi will Alpha Strike to them.
If one of them has a CC that is shorter than 2.5 seconds, Yi will Alpha Strike to them).

Nasus, I choose you! I turn on that little Yi with a wither, where is your auto attacks now?

Hey there yi, that's a cute auto attack you got there, how does my ultimate feel?

Feeling a bit under the weather yi? How do you like that ignite?

You're dead now? That's cute. Gonna keep farming my q at half health.

Eat him.
I chose Cho'gath by the way.

Olaf. I turn and fight him, killing him in 4 seconds.

Aw, hey there Yi, you wanna play with the big boys? Isn't that cute.
Yorick hits him with W, AA, Qs to reset AA timer, E, Ult *if Yi hasn't been laning against Yorick, and thus got fed somehow*, dead Yi.
Jarvan has no excuse getting killed there. If he's low, ult Yi, then EQ out, otherwise just kill him.
Malphite should win, and if he isn't winning, should EASILY last long enough for his team mates to finish what they're doing, then B, maybe do dragon or something, and then come over to help.
Edit: Also, top lane or mid? Because a bit past half in mid is less than halfway in top.
If I'm Caitlyn and by myself, I'll assume I'm mid Cait for some reason, drop a trap behind me a little ways, and then net Yi to get most of the way back to my tower. He really shouldn't kill me fast enough for me not to be able to get away.

a