Most of them are related to that. Short version is that becoming a Nobody is a great way to awaken any dormant magical potential you might have. Though trust me, the whole 'lack of a heart' thing isn't worth the power boost.

[He grapples with the next nearest blaze, bringing it to heel so that Wing can put it out. This one's stubborn, and when he speaks again, his voice shows the strain of the effort.]

Just glad... I got to keep the powers... when I got my heart back.