Pretty self explanatory. Yi synergyses very well with attack speed. Nuff said

Try to carry each game. If you don't you will lose

Pros:
Stupid High damage

Cons:
Squishy

Basically farm up and if you see a lane that's pushed in, go all out for the gank. Your main goal as Yi is to get yourself fed so never give up a kill or an early camp such as blue to a teammate.

There's an I in Yi so your team doesn't matter if the other team is dead :3