Honestly I like AP shaco

it was and still is the only build I acutally enjoy on him, but right now it is really stupidly braindead , not saying more, aoe boxes are great but he can't by countered by almost nothing, maybe just something as braindead as him and only if shaco for whatever reason is overconfident in taking fights.

Honestly boxes by themselves are not the issues, but the combination of his dash invisiblity and those completly safe boxes makes him impossible to play against, he can safe farm jg, safe gank, safe lane, safe doing drakes because there will be few boxes around and a clone to solo it (i think it works better on ad shaco but it's as cancerous anyway).

Honestly what change i recommand is a +3-5 seconds cooldown on his Q at all ranks, that will atleast make him dependent on his boxes to escape if he take a bad fight instead of using them both offensive and deffensive, and then just Q back away if he loses.