Some of you may be asking why?
Well its simple, this vi build gives you crazy amounts of damage and dueling potential.
What makes it good?
Sated devourer being able to proc your W twice means you shred there armor and make it seem easy.

You use a pretty standard rune page theres not really anything fancy about it.

Masteries are the same as runes, Nothing fancy about it.

For items, you basically just want to follow what is up at the top. The only thing you may have to choose between is Black Cleaver or Tri Force. Most of the time I would go Tri force but say you have a really AD heavy team you probably should consider going black cleaver, or if the enemy team starts to heavily stack armor. If not just go tri force its better.

With this build you want to max W because with the Sated Dev, You'll be procing your W twice which means you shred there armor very quickly and become a major threat to squishys. After W max you want to max E for Auto Attack reset so you can get many quick auto attacks in a short period of time.

Pro's
+ High Damage
+ Great Sustain
+ Incredible dueling potential
+ Easy to play

Con's
- Have to farm Sated
- Squishy
- Can be kited

Basically all you have to do is power farm until sated. Once you get Sated and your bork you'll be able to duel basically anyone at that point in the game.