My Story with Rengar

I started in S6 patch 6.9 and i didn't like the game very much my friends brought me in when showing me Rengar and Teemo and my goal was to play them most of the time. I got Teemo and Played only to get Rengar who was 6300 at the time. I got Rengar and i Really didn't know what to build ,what to do or what mastery should i take, but it was fun experience even tho i fed so much .After that i got a bit better at him and that was the best experience ive ever had with this game. Then Riot anounced that they are gonna Rework Rengar and i was worried for my favorite champion being changed ,but one Rioter replied that Rengar is going to remain assasin and i was less worried that they are gonna mess him up. The Rework hit PBE and i saw the New Rengar and i Questioned how is this an assasin at first with this Q cast time and R Camoflage. The Rework hit live and Rengar was broken but he was fun to play because he was viable as an assasin. After 4 mounths You overnerfed him to the state of Bruiser which a lot of Rengar mains dislike. The new Q just feels too clunky and unreliable and doesn't fit in his kit(might as well give it to nami so she can swim better) . W doesn't fit ,waiting 1.5 sec to get the full benefit with the new ferocity system you are forced to use W instantly if you want to kill someone .At least the old W gave you armor and mr the second you used it which supported his assasin playstyle . And his ult is the definition of counterplay, every part of it got destroyed 2 sec delay before jumping and you you use an abillity or auto attack before these 2 seconds it goes on CD.The warning range is too big( The abillity actually punishes you for leveling it up because the warning Range goes up when you level it ) The rework is a big mess and it is one of the biggest failures that happend . And you didn't follow your promise "Rengar to remain assasin" I know the old Rengar had little counterplay for adces but if you had something like Janna ,Lulu, Leona, Zac ,Malzahar(something that could lock him down or peel the target that he is going for) He was Extremely easy to counter, but some people go alone versus a fed Rengar and then go and Cry on the boards that Rengar is broken champion. Rengar was high risk high reward Champion, but when people stomped him they forgot that he even exists ,because he is useless when behind.