|Because this Kaiju / Seijin is a character in the show instead of the monster of the week, it has been given its own page. If you're looking for the original page, see Alien Magma.|
In his very first appearance, Maguma participated in the Villain Guild's attempt to kidnap a baby Zandrias to lure its mother, forcing her to fight their soon-to-be-auctioned Zegun to attract highest bidders. When Hellberus appeared out of nowhere and thwarted their actions, Maguma teleported away before the building he based on was crushed by the Young Mother Zandrias.
After the plan was successfully executed, both aliens were hired as members of EGIS, with Maguma being the new guard.