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.
I have recently started playing Ashe a ton and this build has always proven to work well for me so far.
This is a pretty standard 21/0/9 for ashe.
Heal: I'm sure a ton of you probably saw Heal and thought it was a bad choice for a spell but I have gotten tons of first blood kills just by using Heal at the last second as they try to tower dive after me. It's also nice to have for mid to late game for a DPS champion.
Ghost: This spell is important for Ashe since she is a slow champion, It helps with chasing down enemy champions when they are near death and of course helps you escape when they attempt to gank you. I see a lot of people use Flash over Ghost but i personally think Ghost is tons more effective for a ranged character.
Get volley as your first spell and when you go to solo mid which most ashe players really should be doing, don't waste your volley on creeps, use it to play aggresively and get some early hits on the enemy champion. The rest is pretty standard just max out Volley and Frost shot as soon as possible and get Hawkshot last.
I start the game off by getting a Vampiric Scepter (12% lifesteal) which helps with soloing mid because it means i don't have to go back to heal very often. Once i have saved up about 1440 gold I will go back and buy a Malady. Malady is a very effective early game weapon for getting some kills. Next I buy the Berserkers Greaves for about 920 gold, this will get you up to 75% attack speed fairly quickly. After I have gotten those two items I buy the Witt's End, I haven't seen very many Ashe builds on this site that use this item but I find it very nice for ganking any type of mana using champion. After you get this weapon you will be up to 115% attack speed which makes getting ganks very easy. Afterwards I buy the Infinity Edge for some extra attack damage and 20% critical chance and of course because it gives you 250% critical strike damage. Now if the game hasn't ended by now which it usually has I would get The Bloodthirster for some extra damage and lifesteal and The Black Cleaver for the armor pen which helps for getting tanks down.
That's about it, this is my first build that i've made for this site please tell me what you think.