Well, let me just tell you one thing. At rank 3 ulti, maxed CDR and ultimate hunter, your ulti has a 28 SEC COOLDOWN. THAT'S 2 ULTS IN 1 MINUTE. Ashe's ulti provides kill pressure across the entire map and it's an ability that can lock down even the most fed of carries. Ashe's long range W and attack range, combined with Arcant Comet and Scorch, allows her to be an insane poke machine in lane. This build will let you be a monster in early, mid, and late game, dishing out good damage, setting up kills, and tanking for your team all at the same time. Enjoy!