Xayah's R>E Damage
I recently played a game against Xayah. Her and I were about even in items. I had a BF sword + long sword and she had a BF sword + Doran's blade. I was pretty surprised when she ended up bursting me at level 6 with her RE combo though. I did some calculations and was kind of shocked with how much damage it does.
In the video above, Xayah ends up hitting me with the 5 feathers from her ultimate + 1 feather she had set up.
Xayah seems to max E first, so at level 6 she has 3 points in E. Her ultimate expels 5 feathers. If she casts her ultimate and immediately uses E then you're pretty much guaranteed to take damage from all 5 of the feathers.
The total damage of the RE combo at level 6 deals 380 + (340% bonus AD) physical damage. The Xayah I was against had about 50 bonus AD at level 6, so her RE combo did 550 physical damage (before resistances). Doesn't think seem a little high for how reliable the damage is?