This actually reminds me of Climber from that stupidly popular DeviantArt contest where everyone's OCs battled to the death in "EndZone"

Basically, I'm thinking to maybe have him be fast, light, and fluffy, and able to be put back together even if he falls apart quite literally at the seams.

Also he'll probably switch from wielding a broom to wielding something more stabby like a farmer's scythe or a pitchfork if it comes down to it.