UnDeafeatable Yi is UnDeafeatable.....

The WuJu Bladesman is the best player in early game because you can kill everyone with your runes masteries Doran's Blade and Wuju Style with your AD reaching 108 to 123

I choose Ignite and Exhaust
Ignite:For the last hits when i don't have Alpha Strike
Exhaust:I use it for going closer to enemies if i don't have enough mana for the ulti or it's on cooldown.
Another good item is Cleanse:Because Yi can be brought down with just one good stun.
NEVER TRY USING GHOST
You are Yi.
Yi and Pantheon are the fastest players Yi has Alpha Strike that can be used to catch up with players and not just to kill minions and stuff.

When you get your 2 BloodThirsters and go directly to the jungle, stack them up and go whoop some a$$

With these items you can be Yi the UnDefeatable