Re: Fairy Tail Manga 219 Discussion and 220 Predictions
Well I didn't understand it quite either, though I interpreted it as that first he made all his magic burst out of his own body. Magic is something that can be given a quantity and even a mass (something that was clearly stated in the Edolas arc) and thus it can be depleted. Natsu just pushed all his magic out of his body, creating a temporary protection sphere. You can compare it to emptying your bladder by peeing. So Natsu became "empty" a magical "vacuum" and he filled the vacuum by eating the black flames.
Originally Posted by Toby Uchiha
This was different from Zancrow's absorbing Natsu's flames. I think Zancrow can't eat flames, he can absorb them and send them back. When he did that with Natsu's Fire Dragon Roar the color was the same: red/yellow, the original color of the flams. However when Natsu absorbed Zancrow's flames, who were black, he sent them back with a red/yellow color. The difference was that Natsu ate the flames and turned it into his own magical power. So he just removed all his magical power and as a result he was completely weakened without energy and then he absorbed the black flames, turned it into his own magical power and fired it back.
In fact it isn't much different than normal flames: by eating flames he increases his strength, only to make that work this time he first had to remove all his original magical power, though the result remains the same. As Natsu said "there do exists flames which you need to eat in a special way". He just had to take a little detour. His normal flames and the black flames don't mix, so by deleting his magical power, absorbing the black flames and then transform that in his magical power he did succeed in combining both.