This Build is on a MF build i decided to try for fun. It actually turned out to be quite a good MF build. I went 5/1/11 in a game with a Kogmaw adc against a Jinx adc and Alistar support. Not the greatest matchup but we ended up shredding them hard and making them having to sit under turret due to how much poke i dished out.

For my 1st ree i ran Inspiration with Kleptomany, biscuit delivery, future market, cosmic insight for my main tree so each time i poked the enemy i got gold, which if i took back after i collected up a good amount i got items faster. I got biscuit so if i was running low on mana i could use one, the cosmic insight a nice little buff adding more cdr overall.

In my 2nd tree i took sorcery with, Manaflow Band and gathering storm which let me poke out more for free and gave me increased damage when i wanted to shred

For items you want a relic shield to get more gold and give some to your adc and upgrade it to face of the mountain for a little shield. Other then that the ususal Black Cleaver, Duskblade, Yoomus etc. Any armor pen in which you can shred the enemies with.

Max q first. Guaranteed hit with it on an enemy but not with a minion onto enemy. Then begin to max e and pick up the 2nd r skill when you can after maxing e, then max r and w last.

Flash (Always duh) For escapes.
Exhaust if you want to slow a ganking jungler even more or a charging adc whos hungry for kills
OR
If you are feeling brave and cheesey take ignite in case you are in some fights.

Pros:
Faster to get your items and outscale
Annoying for the enemy bot to deal with
Adds more shred for your team late game
Cons:
Squishy bot lane
Easy to be outplayed and 4 man ganked