Originally Posted by
m0nk3y8
Im not saying Rengar is weak, (far from it) I'm just saying that if you mess up you can't do anything all match.
Rengar actually outdamages Kha'zhix early. If you listened the Kha was sitting on 1400 gold so Rengar had a big advantage, which made him snowball the whole match.
Rengar is my favorite champion but certainly not the one I am best at or play the most. (of course this will change after the ult rework)
Regardless of item advantage, all that would have meant was Rengar would have died with Kha. Because let's face it, not a single Kha buys defensive items other than boots or red crystal in the early game. The important point was, behind in levels, Rengar basically one shot Kha from full health while he was at less than 40%, and survived it as well.
Like all assassins or split pushers, Rengar can stay useful even if you lose your lane by definition of an assassin or split pusher. Assassins jump squishies and either pick up a kill or force a retreat, and split pushers force somebody to defend a lane so the rest of the team can 4v4 while they proceed to duel. Something Rengar is very strong at doing.
And you're over emphasizing one kill over the triple kill he got from a smart team fight and a small amount of kill stealing. That's when he started snowballing. The one kill just made him get on equal gold footing with Kha.