The Ashe build for ADC is Trinity Force and Lethal Tempo. This LoL Ashe guide for ADC at Platinum+ on 13.19 includes runes, items, skill order, and counters.
51.7%
(-1.0%)
47.0%
(0.0%)
13.5%
(-0.7%)
10.1%
(-0.1%)
675
(-3)