Can we do something about Rengar?
Alright. He's not overpowered. He can't 1v5. He's weak pre 6. He needs his items to be useful. But once he gets ghostblade-tiamat-LW you aren't going to play League of Legends any more in that game. Him killing you in less time than your latency allows you to flash/ult or whatever your defensive mechanic is is the definition of anti-fun. There is very little to none counterplay against him, since his stealth+ms boost allows him to be on you at the time you see the exclamation mark above your head. As I said, he's not overpowered necessarily but he is incredibly anti-fun to play against and he is the definiton of un-healthy gameplay.
He's way too binary to be straight out nerfed: if he doesn't oneshot someone he's pretty useless. He'd need a complete rework. I don't have much on that, but if anyone has any ideas I'd be happy to hear them.
and
should have they're stealth work like
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