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.
Threats to Ashe with this build
Ashe can be a viable pick in Ranked or Normal Queue to fulfill the role of AD Carry bottom lane in Summoner's Rift; however, she is heavily dependent on team composition. As all champions, Ashe has her weaknesses and her strengths. Ashe’s greatest asset is her ability to initiate ganks, skirmishes and teamfights with Enchanted Crystal Arrow, but this comes at the cost of low mobility and few defensive abilities.
Ashe synergises well with some champions and is countered by others. Below is a brief guide of which types of champions would be ideal in your team composition, and the types of champions who can prove difficult opponents for Ashe on the Fields of Justice.
Ashe is a champion who relies mainly on landing Enchanted Crystal Arrow to catch someone out of position. As such, any champion who can capitalise on a long range stun + slow on the surrounding enemies is a good pick with Ashe. Compared to other AD carries like Graves, Corki or Draven, Ashe has little to no burst damage as she relies more on chasing and kiting her foes with Frost Shot and harassing with Volley (and dealing sustained damage with Ranger's Focus), thus Ashe is best off with a support who can help protect her in lane and help her reach the power spike of level 6 without being punished too hard.
A lot of champions can counter Ashe in many different ways. Any sort of CC or multiple CC that disrupts Ashe OR her allies that are supposed to be protecting her is a good counter. Junglers and top laners who can bypass Ashe's line of protection spell trouble for Ashe, such as Irelia, Jax, Olaf, Singed, Shen; they can get to Ashe and then displace her/damage her, or force her out of the fight so it's 4v4. Enemy bot lane compositions of marksmen and supports that pretty much pwn Ashe in lane are those that can capitalize on her weak dueling ability before level 6.