@Riot xShepherd didnt want bruiser rengar, neither do I.
">xShepherd: W: I don't think the CC immunity needs to be removed. I think there are enough levers around the spell for it to be tuned while retaining CC immunity. For example we tested W with just a cleanse and it was pretty awful- there's often more than one source of CC when diving, and a single slow was often enough to lock down Assassin Rengar to be blasted. I think removing CC immunity is actually a big nerf to Assassin Rengar, and if anything that's the play pattern we would want to support."
So why didnt we nerf the insane healing part first?