Magma Giras

Magma Giras (マグマギラス) is one of the novel exclusive kaiju that Neo Khan Digifier summoned, appearing in the June issue.

Subtile: Flame Monster (火炎怪獣)

Denkou Choujin Gridman: The Demon King's Counterattack
Magma Giras was one of monsters Khan Digifier summoned to do his bidding.

Denkou Choujin Gridman: boys invent great hero
Magma Giras was one of the many shadowed sillouettes of kaiju that appeared all across Japan.

Powers
Flames : Magma Giras is able to emit 300,000 degree flames.

Plasma Bullets:  From it's horn, Magma Giras can rapidly fire plasma bullets.

Trivia

 * Magma Giras's is not to be confused with Alien Magma's Giras
 * It functions the same way as Flamelar did in the original Gridman series.