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.
My only advice as par how to play is depend on your teammates,
and use clairvoyance on CD.
Basic jest of Ashe is pretty easy to understand, play defensive early and try to only gone for kills when you know for sure you can get them. In team fights, as with any ranged champion, just in stand in the back and rape their carries like it's your job, cause that what it ****ing is.
Always remember that you're EXTREMELY squishy, and EXTREMELY susceptible to all forms of CC. If they have a team with a lot of CCs then build Mercury's Treads instead of Berserker Grieves, and get a Banshee's Vail if you feel it necessary earlier in the build (before you finish out your Phantom Dancer).
The only part in the build that's up in the air is what to build last.
Generally (when playing ranked) tanks become more problematic then dps/carries,
so I generally build a Last Whisper or The Black Cleaver, depending on the tank.
If dps are the issue in the game, build another Bloodthirster or Guardian Angel,
as for "nuker" carries I generally build a Banshee's Vail or Hexdrinker.
Q) Isn't massing crit on Ashe a better way to go about her?
A) No, if you've ever played Ashe you reolize it's ******ed to go crit, you lose to much of everything else and thorn mail, need I say more? Besides crits are unreliable damage, it's better just to get armor pen and more AD.
Q) Hawkshot is terrible, why even get it at all?
A) I beg to differ. Being a good player is about tactical decision making, and map awareness is a huge part of making good tactical decisions. As well as giving extra gold per kill adds up fast when you get good at last hitting. IE: One point in Hawkshot at level 3 will add about ~50 extra gold buy level 6.