So finally there have been some Gragas nerfs hitting the PBE, including health regeneration and Q slow nerfs. I know that he really needs a nerf in the jungle but I really feel like this is completely attacking the wrong points. The only reason why Gragas got picked in the jungle was a buff to the damage cap of his W against monsters. Before that buff Gragas was barrely (huehue) seen on the Rift. What I would really wish to happen is some kind of compensation for Toplane Gragas, naming to increase Q's damage against minions.
Gragas was never intended to be a jungler, it was just a result of the current meta and while I aggree that he needs nerfs when being played in the jungle, I have to mention that he can very quickly fall out of competition if such nerfs continue to be released.