The Xin Zhao build for Jungle is Goredrinker and Conqueror. This LoL Xin Zhao guide for Jungle at Platinum+ on 13.23 includes runes, items, skill order, and counters.
Xin Zhao Counters
51.1%
(+0.2%)
49.8%
(-0.1%)
1.9%
0.2%
(-0.0%)
676
(-12)