Gragas has a 46% win rate right now - how about we buff his AP ratios?
His rework aimed to make him somewhat of an AP bruiser champion and he even was played that way for a while because of his insane Q waveclear before it got nerfed, but after that he was almost exclusively built as a tank except for the short period of time when Runic Echoes was overpowered. He lost that AP bruiser-y feel to him and is now just another generic tank which is a shame.
So since he seems to be underperforming right now anyway, how about we buff his ratios instead of something else in his kit? Specifically his W ratio seems somewhat underwhelming, it's only 30% while his E and Q have 60% respectively. This might encourage people to play him AP again to bring back some of his intended identity on top of just giving him a way to come back into the Meta.