Flame God's Bellow

is a Flame God Slayer Magic Spell.

Description
The Flame God Slayer's exclusive God's Bellow, incorporating the element of fire. In a similar vein to Fire Dragon's Roar, the user breathes a massive fireball of flame at their opponent. When initially cast, rather than being black, like other Flame God Slayer Magic flames, the flames were colored normally, although, this was thought to have occurred because the spell's original caster, Zancrow, had eaten Natsu Dragneel's flames prior. Later on, however, the flames are portrayed as being black in color.

In the anime, the color of the flames is consistently portrayed as being black.