The Beast Changer is an unusual toy and character in the Beast Machines series. In the animated series, he is not a robot at all, but rather an organic creature who can shapeshift into a second creature form. So, there is no distinct robot mode, just two beast modes -- one Noble, and one Savage. In the mythology of the animated series, these forms are byproducts of Megatron's attempts to rid himself of his bestial, organic elements. The Beast Changer was available in 2001.
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.