When Mercphobia goes out of control and almost takes out Natsu, a hand shows up to save him. And it belongs to someone Natsu didn't expect: The Fire Dragon God and the son of Igneel, Ignia.
The Water Dragon God can take 
a human form too, right?
Der Wasserdrachengott doch auch.
Ya viste al Dragón Divino de Agua.
O Deus Dragão da Água também
assumiu forma humana, não é?