The Pretender Monsters combine to form Monstructor, the only combiner from the original Generation One run that wasn't available in a collected giftbox. As noted over the past few days, the inner robots of the Pretender Monsters team were released in different colors and with dinosaur shells in Japan to become DinoForce. So, by virtue of being made up of the same pieces, Monstructor and DinoKing are redecos of each other.
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.
