Fire Dragon Slayer Magic

Fire Dragon Slayer (火の滅竜魔法 Ka no Metsuryū Mahō) is a Caster Type magic, Lost Magic and a type of Dragon Slayer magic used by Natsu Dragneel.

Description
This Magic allows the user to incorporate the element of fire into his body which allows him to produce flames from any part of his body, including his lungs, giving him the ability to, in essence, breathe fire. This also allows Natsu to consume external sources of fire to restore his body to a healthy state, however he cannot use his own flames to renew himself.

As well as the added benefits of his elemental advantage, this Magic gives Natsu a much greater level of endurance. This in turn is greatly enhanced by going into a state called Dragon Force with the consumption of Etherion or the Flame of Rebuke, which not only boosts physical strength and Magic, but also causes a layer of hardened scales to appear on the his body. However, due to the fact Etherion has more elements than just fire fused into its sacred light, it is considered highly dangerous to take the substance into the body, regardless of the benefits, as eating any other element is essentially poison.