Look, I feel Kha'Zix might be a little too strong right now, so he probably needs a minor nerf, but that doesn't matter too much. However, the bigger problem is that Rengar is so weak he can't do very well against most champs, much less Kha'Zix. The fact is, any good Kha' Zix sees a Rengar as a free evolution point and that's the way it is right now. The buff on Rengar's roar only made him less viable and he simply doesn't have either the mobility, cc, or burst damage to be viable. Now thanks to the "buff" he isn't even a very good tank. So, I would like to see him come back. Things I would suggest: Remove invis delay, it's not a big deal Kha doesn't have one neither should Reng, increase his base armor and MR and health, Rengar's early jungling is PATHETIC right now he gets lit up by creeps, increase the duration of his slow on his bola and it's root, I would even take that with a nerf to his q just because Rengar needs more cc since he has no mobility after he has jumped from the bush, one could also just increase his burst damage to balance this but I would like more sustainable damage. Anyway, let me know what you guys think and hopefully, Riot will see I am on to something. I love Rengar's mechanics and it is sad to just play a champ that can't do well on his own unless he gets spoonfed 600 kills...

Well first of all, Kha'Zix was nerfed and second, stop complaining about Rengar not being good unless he is fed and start getting fed every game so you won't have a problem with him.

Kha'Zix already got nerfed and his insane damage output was lowered a bit but he's still good. Rengar can be a big lane bully at top and has good tankiness and damage. I've seen a few good Rengars owning with him at top without "being spoonfed 600 kills" as you call it. Although I do think that he is outclassed by other top laners. He is not trash tier. I think he needs some buffs to is Q and W damage.

I agree to some extent rengar still needs a buff. Not as crazy as you suggest, we don't want him op again. All the buff did was make his jungling sustainable...and thats about it...still can't beat kha, even with kha's nerf. But still he needs another buff.

I agree with the root duration buff. I also would like to point out his w does almost no damage (who's going to build ap on him other than trinforce?).

Those are just my thoughts.

Rengar does not need another buff
my friend would wreck with Rengar at top even before he was rebuffed

he himself thinks Rengar is way to strong now (he's very happy about it) and he steamrolls as Rengar. When I play with him the enemy adc is NEVER in teamfights

He ults and instagibs the enemy adc in seconds

honestly, if you look at the statistics his win rate is going up

Rengar actually could still use more nerfing, do we really want the total domination he had before?