Response to The Avenging Titan
My weapon would be like a lightsaber. It would have a certain kid of Dust crystal inside and make a blade of that type of Dust. It could be a blade or shoot out a beam of energy. Once that Dust is expired, another crystal would replace it.
I think I would be a chameleon Faunus. Blending into surroundings and hiding is an efficient strategy in combat.
My Semblance would be to increase my intelligence for an limited amount of time to solve a problem or look for a weakness my enemy would have. Not like Ironwood's Semblance, which is just for decision making (and is basically excusing his stubborn nature).