Buzz Saw was previously a Predacon in the Beast Wars line, but his on-package bio says he was grateful to Rattrap for saving him from some horrible fate and he switched sides to become a Maximal. His reformatted body is much more angular, and in toy terms features a unique gimmick in that his left arm is a springy coil like a door stopper. He turns into a organo-mechanical wasp, and his bio hilariously asserts that he calls himself 'the bee's knees,' a term none of his colleagues can make sense of. He was available in 2000.
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.