Sparks' opponent moves to the side, and he's learned enough about their strategy to match them in the opposite direction. No easy blows to the face--in fact, all they've got is what they're holding. No special moves to speak of.

Time to try to get rid of them.

Targeting the weapon not on fire first, he jerks his head forward, jaws snapping and giving a few good looks at the inside of his mouth--there's less teeth than a real dog, only a few in the front before disappearing. Further back tapers slightly inward, leaving smooth hard lines of blue the same shade of his fur

Looks like wire cutters on pliers. Something that could at least leave marks in wood if he manages to get a hold of it, though it'd take a couple bites to cut clean through.