This is my first build so I would be grateful for constructive feedback on how to improve any future builds I do.

I have been playing Master Yi for a few months now and have achieved high scores thorughout my games. This build is aimed to provide high attack damage, high attack speed and high survivabilty. I have seen people trying to play Master Yi with just full attack damage items. I believe this is not how he should be played as this provides little survivabilty.

Pros:
Able to easily take down most champions.
CD resets when gets kill
Excellent Attack Speed
Excellent Damage
Easy to Learn

Cons:
Vulnerable to binds
High mana costs
Focused in teamfights

Greater Mark of Desolation Extra damage early game.
Greater Glyph of Scaling Cooldown Reduction Extra CD reduction.
Greater Seal of Scaling Mana Regeneration More Mana Regen for early game spamming.
Greater Quintessence of Desolation Extra damage early game.

For masteries I have taken a standard 21 - 0 - 9 build. As i felt a 9 - 0 - 21 build would lack the essential damage that Master Yi needs.

I take cooldown reduction as this allows Yi's ulti to be used more ingame.

I take Alpha Strike at Level 1 as this allows you to harass and gather minion kills fast without putting yourself into too much risk, I then max out wuju style as this is one of your main killing spells along with your ulti. Taking Meditate at level 4 allows you to stay in lane longer.

Combining Yi's ULti with exhaust and ignite can bring nearly every enemy down. And the refresh cooldown effect with master yi's ulti means you can keep getting kills and the extra runspeed allows you to chase down enemies.

For summoner spells I recommend Exhaust and Ignite as this allows you to take easy kills early game.

You can also use Flash as this is a great spell for escaping if you are ganked.
I wouldnt recommend Ghost as your ulti should be sufficent for runspeed.