Rengars identity crisis

Rengar has not had a single firm identity since realease. On release he was a full tank that could 1 shot carries, later on he became an assasin who 1 shot people, after the rework he became a fighter in the jungle who jumped on carries and locked them down for your team to kill, now he is back to being an assasin in the jungle. Riot needs to realize they can't give rengar everything, they need to give rengar an identity.

tank rengar idea no, rengar isn't a tank and he should not be made into a tank.

Assasin rengar idea: remove bonus resists on battle roar, increase base damage and ad ratio on savagery. When rengar is a good assasin, he can jump into fights and gain up to 50 armor/magic resist effectively making him extremely hard to kill and giving him free reign to wreck your team.

Fighter rengar idea: lower w cooldown, give un-empowered w a small heal, lower base damage and ad ratio on q/empowered q, give un-empowered q a small burst of attack speed (30% for 1 second maybe?). These changes are to help rengar dive the backline and slowly kill the carries while sustaining with his w.

If you have any other ideas for changes to rengar, tell me in the comments.