Hey, Riot- When will your game be healthy again?

I'm starting to dislike the diversity in the game because the term diversity heavily applies to AD champions. I feel so crippled playing an AP champion. Rengar can have a heal, protections increase, and no resource but can build much tankier than I can and provide more damage?

Yeah, that's healthy. Shaco and Kha'zix can't do that because they have a need to scale/basic attack. And no, this isn't JUST about Rengar. I'm seriously concerned about this game's health.

I feel jipped playing AP. It doesn't feel good to have all these pretty skills and cool effects when I can just play an AD champion whose less flashy and can be a consistent source of variety and damage.