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.