Agheel's Flame

Your mouth becomes a gaping maw, filled with jagged teeth and the power to unleash a blast of fiery breath. You exhale a 20-foot line of flames, each creature in the area must make a Dexterity saving throw or take 5d4 fire damage.
After the attack, you immediately revert back to your normal form. If you transformed while in mid-air, you will fall and take fall damage if you land more than 20 feet from the ground.