[And he's all too eager to share what he knows, if gruff about it.]

The basics aren't so hard to follow. The increase in our wingspan is accompanied by a specialization in a certain elemental magic, which is akin to the filial magic - there's certainly nothing fonic about this. The elements all seem to corrsespond to the wing colors.

And thus far, I am experimenting on my new capabilities. And they are going fabulously!

[He makes a spiral of fire rise up from his hand, reflected in his glasses. Isn't it great that your brother has to be an impulsive pyro to be nice to you, Nephry.]