I don't even think they tried to give Kha a delay in his damage. They gave him more IMO and he still get's CD refunded with evolve Q.
Rengar is just a fucking mess and I'm honestly surprised that shit made it through PBE.
"Yeah we'll make his Q a 2-hit skill shot now, but then we'll buff it's damage through the fucking ceiling and give him a free AD deathcap by killing 5 unique champions. 5 UNIQUE CHAMPIONS. VERY DIFFICULT ONLY CHALLENGER LEVEL RENGAR OTPS CAN PULL THAT OFF."
Don't even get me started on that free crit he gets. Slap an IE on that with his massive passive steroid, he can essentially get off the same ult-hop burst that he could before. Just now it scales better. At least Talon has to strategically use his E to get into meelee range. And Talon still has less damage than Rengar.
Oh yeah, did I mention he can build tank/bruiser now? Didn't Riot learn from bruiser Fizz and tank Ekko already? I know it's pre-season, but comon this is honestly getting old and becoming common sense stuff.