He has pretty shit damage compared to your average diving fighter. Mainly because he has terrible base damage with really high bonus ad ratios, topped off with the fact that his q is very unreliable as a tiny width tiny length skillshot where 2/3 of the damage comes from the latter portion of a short range 1.75 sec tether.
This is of course the price he pays for his awesome passive. Skaarl takes up a massive portion of his power budget. But even then, remounting isnt a certainty, and the extra hp is nice but when youre dismounted you are next to useless.
Idk i think kled is pretty fair and his tiny playrate and subpar winrate prove that.