Vykron was the MOTUC exclusive figure for the San Diego Comic Con in 2012. He is based on three prototype figure that were cobbled together by customizing other Mattel toys during the design process for the vintage Master of the Universe line. The SDCC set contained one body and accessories to dress the figure up in three different costumes.
Check out the AFA Animated Review below. I picked up three sets because I wanted to be able to display all three versions of Vykron at one time.