I think he's not in too bad of a spot and could probably benefit from a rework. I'm a long-time League player and just having flashbacks to before his last rework (that put him into the state he's in now), AKA AP Yi. For 2 whole years, Master Yi had a 100% AP scaling on his Q and a 300% AP scaling on his W. And unlike most annoying old champions, like old Urgot, Poppy, Sion, and Yorick, he didn't get nerfed into the ground. For 2 whole years, he terrorized solo queue, boosting players from bronze to challenger just from being Master Yi.