This is a technique that Ryun uses by tapping on the power of the Four-Tailed Beast. It works similarly to the Fire Release: Great Fireball Technique. After performing the necessary hand seal, Ryun inhales air via his mouth and, gathers up chakra in his chest, then spews a large lava ball from his mouth after blowing through a ring made by the thumb and index finger, incinerating everything in range. Ryun is also seen doing this technique without making a ring over his mouth. The lava ball ignites externally.