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.
It's just a simple test.
Ashe need a high amount of critical chance and attack speed, with this you will be a "serial killer".
maybe some damage could help...but don't run just for it, remember that Ashe need to attack fast to make a clean and quick kill...
thanks for reading and sorry about my poor english