Testing it is fine -- I want to try it again, anyway, to perfect it, because it's not as strong as I want it to be. And I don't usually use my fire to trap people, and that can be worked on later.

[Mars waves a gloved hand before she closes her eyes to let her transformation melt away, becoming Rei again. There is little point in remaining transformed -- she won't try to trap Castiel again. She has her proof.

But when she opens her eyes, the grin is still there. Triumph.]

But the fact that it works at all is pretty cool.

[Stoke her ego, Castiel.]