Seven Changer has a total of 7 modes, which include a robot, griffon, jaguar, tank, submarine, jetplane and truck mode. His flexibility of many modes along with his agility makes Seven Changer a fearsome opponent in combat.

Seven Changer was originally concealed inside a statue in the Wilder planet and was activated when Yanchar's plead for help resulted in his Brave Stone resonating with the statue. After leaving their destroyed planet just at the nick of time, Yanchar and Changer began to come up with a plan of revenge on Ohboss. They tried to infiltrate the ranks of Ohboss as a mercenary but his cover was blown eventually, which led to them joining forces with the Brave Warriors and defeat Ohboss. During the final battle, Seven Changer managed to defeat Red Geist in combat, but at the cost of his life. However, his Brave Stone later joined the others and merged with Great Da-Garn GX, unleashing the true Power of Legend.