[@Crosswire]

Oh, that could definitely work. I'll brainstorm some ideas for magic while working on my character. Thanks!

As for the hiding of magic, I imagine that he would scarcely use it when fighting against humans/ponies who create some ruckus but would lovingly obliterate anything else (unless given some direct order). And he's not chaotic in a sense that he wants to watch the world burn (though it might open up to be like that) but he just likes destruction in general. As long as he gets to harm others, be it monsters or otherwise, it's pretty much cool with him to stick with the Guard and work for them.

He did choose the profession because of its opportunities for him.