League of Legends (LoL) Question: Master Yi Masteries and Item Builds

I'm not sure if this is the best Master Yi build out there, but it's the one that I prefer:

Blade of the Ruined King
Youmuu's Ghostblade
Boots always depend on the situation - Berserker's Greaves, Mercury's Treads, Ninja Tabi
After you have these 3 items you should look at what you need.
If you need more damage Infinity Edge, Bloodthirster, Last Whisper are all nice options. If you need durability Randuin's Omen, Banshee's Veil and Guardian Angel are your best friends.