Ok now this build is really good for soloing and for chasing wonded opponents

Ok runes to me are kind of no use to me i really dont use them much but if u want to know which to use i would think the movement and cool down reduction and attack is the only ones u need

Same as the runes to me masteries dont matter i have mine setup as main attack and movement and a little defence

Heres the main part to me good item builds are a good character ok here we go for my master yi i use speed both attack and movement so
Dorans shield--- get more health and defence in the beggining

Berserkers greaves--- attack speed and movement

Phantom dancers--- attack speed and critical hits

Nashors tooth--- for more attack damage and ability cooldown

Last whisper--- for all the armor noobs out their to break through and and attack

Force of nature--- so you dont die as fast from magic attacks and incase someone gets thornmail armor(hate that armor)

Then get the big amd bad blood thirster or infinity edge but i perfer the bloodthirster because of the life steal

The way i build my skills is like this
1) alpha strike
2) wuju style
3) Meditate
4) alpha strike
5) wuju style
6) highlander
6) wuju style
7) meditate
8) alpha strike
9) wuju style
10) alpha strike
11) meditate
12) highlander
13) alpha strike
14) meditate
15) meditate
16) highlander
17) alpha strike
18) wuju style

Thats about it i know their not exactly what you think would work but it does

This setup work pretty good for creeping and jungling

Pros

Fast attacks
Quick movement
Strong attacks
Kill minions and neutral monsters
Works great with red and blue buff
Solo dragon easily mid game

Cons

Lower health
Bad against mages or high ability powered champions
Low ability power so low spell damage
Weak at multiple targets
Need mana alot in beginning

Basic way is to use alpha strike then highlander and wuju style

Advance way is to use highlander then alpha strike when ure close that way u camt get stunned or slowed when u get close to champion then when ure attacking champion use wuju style

If your almost dead against multiple enemys and their low on health to use meditate to hold health where its at the use alpha strike to use a final blow before you die to try and kill some enemys

With the wuju strike thing (every 7th hit attacks 2 times) works real good with the really fast attack speed and if u attack with out them attacking u first you normally have the upper hand unless then have stun like sion amd lux.