Hifuki no Kozuchi

sometimes incorrectly romanized as Hifuki no Kozuchi, is a technique used by Love Aikawa's Zanpakutō, Tengumaru.

Description
Love swings Tengumaru upwards and it ignites itself in flames. He then points it down and a huge fireball fires from the tip, and upon making contact with the target, the fire explodes outwards a great distance, with the resulting blast being strong enough to cave in buildings near the center of impact. At the site of impact, a huge column of burning flames forms further incinerating anything in the area.