This starts a new assortment of blind-box Micron Booster toys sold in the summer of 2004 in Japan exclusively at Lawson stores. First in the series of 12 is Saber, who turns into a Cybertronian gunship. Saber's design had previously been used as Thunderclash in Armada and would be repeatedly reused in this assortment. Saber was renamed Barnstorm in American lore years after the fact.
An Online Amateur Sketchpad