Fire Dragon's Prison

Fire Dragon's Prison (火竜の獄 Karyū no Goku) is a Fire Dragon Slayer Magic spell.

Usage
Redder creates a big sphere of flames around his body that traps anyone that enters it. He can also manipulate the flames of the sphere to spin wuickly, making it bigger and stronger, serving not only as a trapping device, but as an offensive and defensive ability.

Trivia

 * Its name comes from "Jigoku" (地獄), meaning "Hell" or "Inferno". Goku is pronounced the same way as Gokū, from Son Gokū, the main character of the Chinese novel Journey to the West. He was born in a volcanic island, which is related to the theme of fire or heat.