This is Black Zarak, a mighty Decepticon warrior released in Japan in 1988. He is an exclusive retool of Skorponok, featuring as a signature villain in the Japanese Super God Masterforce storyline. This robot turns into a city mode, as well as an enormous mechanical scorpion. Being a sizeable playset of a toy, he comes with smaller pack-in robots, like Black Roritchi, a multi-axle service vehicle, and his Headmaster unit, drawn here in the inset.
The combined form of the Universe Micromaster Aerialbots is Superion, an amalgamation of six robots plus their pack-in accessories that serve as connectors, head, and extremities of the gestalt warrior. While in Japan, the original source of the design ( Sixwing , 1992) was available in a collected set, this combiner needed to be purchased one bot at a time in the 2007 Universe release.
