Not Updated For Current Season
The masteries shown here are not yet updated for the current season, the guide author needs to set up the new masteries. As such, they will be different than the masteries you see in-game.
This is my first build, don't be afraid to comment on it. I chose the dagger before the boots, because of the extra attack speed. I reccommend that if you are mid. Try and get there first. Sit stealthed and then use the exhaust, then ignite, then blinding shot just to get them down. In some cases you might actually kill them, but more times than not, you'll just get them to about half health and anger them, because they will get maybe one shot in while you get a good 5 or 6. I'd reccomend tower hugging after that until you get your mushrooms then just scatter them along the sides, away from minions. Late game strategy is to stick by the tank and just feed off of the byproducts of the team fights, by then you should at least have your hextech gunblade in the process of completion. Sadly the item build is expensive so getting kills or assists is extremely important. I would not reccomend this build to those who are not aggressive kill stealers.