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.
Use this build, this itens are perfect for mid lane, cause you can last hit the minions with your Desintegrate and when you have the stun, stun your enemie with your Desintegrate and use Incinerate. When you are level 6, use this combo : Desintegrate (Stun) > Tibbers > Incinerate > Ignite > Desintegrate. But pay attention if your enemie has heal or flash, in this case, make your opponent use this spells before this super combo. This combo without flash or opponent's heal = DEAD