Kalimos, Primal Lord
Kalimos, Primal Lord is a powerful elemental, seemingly made out of all four elements, native to Un'Goro Crater in the Journey to Un'Goro expansion for Hearthstone. He is not considered an Elemental Lord, but is "a bit like Murmur".
While they were exploring the top of Fire Plume Ridge, Professor Doyle and Eddie Malone observed Kalimos and several of its servants, which looked like smaller versions of it. Eddie noted in his journal that the smaller elementals venturing to the volcano seemed to be fascinated with Kalimos, and that the Primal Lord's servants would copy something from one of the little elementals and then spin off a completely different elemental. Doyle claimed to have never seen or heard of anything like it.