Use this build in-game
Build ID: 513082 - copy and import it in the Deadlock shop
Xinyan suffers from significant "split scaling" because her shield strength is based on DEF, while her damage (Skill/Burst) relies on ATK. This requires a choice between a durable shield or high damage output, as investing in one stat weakens the other. I built my Xinyan as a waifu only player and she still sucks. If you really need pyro just build Amber Xinyans best roll would be some kind of shield bot since both her skill and ult make one at C4iirc but they are so weak it doesn't matter
Recommended ability leveling order for this build