The obvious topic on Kayn.
Kayn ult is weak. I've seen kayn's ult do nearly 0 total damage. Yes 0 total damage on someone like broken mundo...
Suggestion is to buff Kayn's over all ult damage on both blue/red transformations perhaps when enemy is super low... And give blue kayn extra ult damage on top of the buff, because blue kayn is still far weaker then red kayn.