Magis

Magis (GoseiGreen) was a member of the Seaick Tribe, the former partner of Hyde's (GoseiBlue) and the second Angel of the sea.

Biography
Sometime prior to episode 1 (as seen in episode 10), it was revealed that Magis had saved Hyde's life by transforming into Gosei Green and fighting Kurasunigo of 5000°C; but although he saved Hyde's life, unfortunately he paid the price of his own life. In Episode 10, it was also revealed that Hyde will leave flowers at the last place where Magis died in his arms.

Gosei Green
Magis presumably transformed into Gosei Green by putting a GoseiGreen Change Card in his Tensouder. Gosei Green is a Seaick Tribe power wielder with the motif of an unidentified (presumably aquatic) creature, and piloted a mecha based on that animal. He also presumably wielded a personal weapon.

Arsenal

 * Tensouder
 * Gosei Cards
 * GoseiCard Buckle

Mecha
GoseiGreen presumably piloted some sort of mecha before his death.

Trivia

 * GoseiGreen's suit appears to be a recoloring of GoseiBlue from a azure blue to a seafoam green.
 * Yousuke Itou previously played the more major role of Sen'ichi Enari (DekaGreen), in Tokusou Sentai Dekaranger.