Tips for xayah?

Your range is shorter than almost every ADC. so position accordingly.

never "play" her Rakan going to beat your ass if you do

Coming from a Platinum level support main that goes up against Xayah a TON in ranked, so take it with a grain of salt:

• The CC and control her feathers provide are probably her best asset as an ADC - work on mastering this mechanic. Landing stuns = a complete win for Xayah. It's what you should be trying to do almost always.
• She's pretty short ranged. Be wary about getting close. Your ultimate will save you once, but not twice.
• She's surprisingly good at poking in the early laning phase. This is another strong aspect of her kit.
• Her biggest weakness is that she is very easy to predict. Her kit and combo is all pretty telegraphed and its easy to see coming, so smart players will know what your planning. Learn how to surprise them!

due to the q nerf you want to w q e if you want a quick root, while your feathers are flying your e will bring them back once they reach their destination so u can have some delayed damage/root if they arent paying attention, dont try to e flash unless its a 90% chance for a kill