Does Rengar scale?
No. Rengar gets actively worse as the game goes on.
Close to Rek'Sai. One-way trip problem. One-tricks can make him look good because they get good at doing a one-shot combo when very ahead. In a coordinated team environment, that is even, he is not too good.
The grade measures one thing: how much a champion can influence a coordinated late-game objective fight once both teams reach full builds. It does not measure early strength, snowballing, or win rate. A weak late-game champion still wins by ending the game first, which is what the rest of the library teaches.
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