This is Grand. This is a bit complicated. Yesterday's Grand Maximus is a Headmaster, and his head becomes Grand. Grand has a Pretender shell that can conceal this robot mode. And Grand's head detaches and turns into a smaller robot, Gran (inset). It's like a nesting doll of robots. Grand was released as part of the Grand Maximus set in Japan in 1988.
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.
