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.
Its a difficult build to pull of due to high cost of items but your Madreds and Black cleaver late game allow you to rip apart everyone on the team including their tanks.
Ashe is all about map coverage. make sure you use your hawk shot to try and locate ganks and junglers.
Be stingy with your ulti. Only use it when you really need to do so to engage a team fight or catch the runner who thinks he's about to get away from the team fight.
Volley through Fog of War and trees during the engagement of a team fight and position yourself in back in order to take down the champs 4% at a time.