The Nilah build for ADC is Navori Quickblades and Conqueror. This LoL Nilah guide for ADC at Platinum+ on 13.18 includes runes, items, skill order, and counters.
53.5%
(+0.2%)
61.6%
(+0.1%)
3.5%
5.4%
(+1.1%)
680
(+2)