Katō Jutsu

Katōjutsu (火問術, "Fire Combat Technique"): Fire-breathing technique used by Galon (the Captain of the Ken-Ō Invasion Squad at Mamiya's village). The style's name in the anime is Ryūto Kaen Jutsu (竜吐火焔術, "Dragon Belch Flame Art")

Hokuto Musō

Heart can learn this technique on his meridian chart as a signature move. It is called Chō Katonjutsu (超火遁術, Super Fire Release Technique).