The last of the three Mega Pretenders is a Decepticon who became a major villain in the pages of the original Transformers comics. His inner robot is a pretty basic little 'bot that turns into a spacecraft. It's the outer shell, however, that's the real attention getter. It is some sort of armored alien warrior with a fearsome face that resembles a Japanese oni mask. As a Mega Pretender, this outer shell also transforms, in this case to a larger space ship. So distinctive was his outer shell design that the inner robot rarely made an appearance in the comic. Thunderwing was available in 1989. That same year, in Japan, the body became the basis of the character Black Shadow.
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.