Natsu slams his feet against the Titans metal fist as he swings it toward him, he sprints toward Zargo, before yelling [b]"Fire Dragon -- Claw!"[/b] suddenly his feet burst into intense flames, and keeping them there would definitely begin to melt the metal. He would then yell - [b] "Fire Dragon Beautiful Flame!" [/b] as he begins to form a large fire in both of his hands, he crunches his fists together, and jumps from the now somewhat melted arm, tossing a large fireball towards Zargo and the Titan

P.S: The fireball is quite big, I would say around the size of the Titan Head maybe slightly bigger.