I mean visibly it's clearly top-heavy but I don't know HOW heavy it is, so you might be able to swing it around. I guess the only question is if the energy coming off of it is like, radioactive. If it's safe to be around as long as it's not getting slammed into your chest-cavity and it's less than, say, 50 lbs, you could probably use this.

how is this unusable? you can hold it perfectly fine

"...ridiculous, nonsensical, unusable, yet cool looking weapons."

Simply saying "the best kind of weapons" would have sufficed.