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.
The point of using this build is to use your volley as much as possible. You want to keep your movement speed high so you will be able to get out of situations in which you might die and kite very easily. Ashe is incredibly squishy so the movement speed will allow you to maneuver behind your teammates. Offer to solo with this build.
Off the spawn you want to buy a Long Sword and a Health Potion.
Around level 6 or 7 you will be able to buy your Brutalizer and rank 1 boots or Boots of Swiftness.
Next you want to start saving for and Infinity Edge and Zeal
*3 OR MORE HIGH HEALTH CHARACTERS(tanks) BUY MADRED'S BLOODRAZORS BEFORE INFINTY EDGE*
After you buy your zeal it will be fairly late game and you will do a ton of damage and will start to get focused in team fights. To help surviveability buy a Banshee's Veil.
After the Banshee's Veil it is completley up to you. Earlier in the game I like to buy a Vampiric Scepter if I have the money and I will use it later to build a Malady after my Banshee's Veil.
*Throughout the whole game you want to be buying Sight Wards to place on the map in important areas such as Dragon and Baron. You may want to place them ouside of the area in the river so you can see if you are about to be ganked.
The Buys can be altered to best suit different in game situations.
I like to use:
Armor Penetration Marks
Mana Regen Seals
Cooldown Reductuon Glyhmphs
Either Movement Speed or Experience bonus Quintessences