User blog comment:Zathronas/Speculative author, Volume 3: Jaune Arc/@comment-173.183.64.107-20141121034045/@comment-24218038-20141122003315

Hey I might well be wrong and I don't mind.

But if we saw his semblance as density... then isn't it what I've been saying?

I see his semblance more offensive as he could change the power of a weapon with one touch. But yes, it could be used defensively too as any other semblance you see on the show.