Optimus Prime is an excellent source of reliable redecoes -- dip him in black, and you have Nemesis Prime. Dip him in white, and you got Ultra Magnus. That's the case with this Universe release, which is a redeco of Prime from Armada, which also includes Prime's Mini-Con partner Over-Run. Magnus was sold in a "Battle in a Box" two-pack Decepticon Treadshot and Nightbeat, available exclusively at stores like Kohl's.
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.
