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.
Dragon Slaying Ultimate Technique: 
Crimson Flare Flaming Blade!
Geheime Drachentöter-Technik: …
Arte Secreto de Cazadragones.
Técnica de Matador de Dragões: Lâmina
Flamejante da Chama Carmesim!