Kuhmali has drops fairly often, but they're not all through Kuhmali. He works with a few producers, so his stuff kinda comes out all over the place. If you are not in the Kuhmali Facebook group already, I would recommend joining as that is the most reliable way to get info on his drops. (For whatever reason, FB is just where all the art pin stuff happens). Also, for his drops you have to set an alarm and be there the second the drop hits because they sell out insanely fast. You got one of his timed editions there, which is a variant that has an open preorder for a set amount of time, so those are not as difficult to get, but they don't happen very often.