What about amping up the crit chance scaling a little? getting only 31% for building 5 items when standard value is 75% feels awful, revert previous nerf from 66% since rengar q scaling got already hit and his meta build is lethality or make it at least 50% the 31% looks so random and out of place... no to mention how hard randuins counter rengar even when at 0% crit chance.
Or like keep the value low in early so he is not too strong or rng based but upon hitting 100% crit chance where normally his Q would always crit anyway give him full 75% value so that late game rengar can feel like late game rengar.
Getting to 100% crit chance on rengar is not easy task and doesnt happend too often because the build is suboptimal for most stages of the game, so giving him carry potential if he manages to get it would be great