Board Thread:Off Topic/@comment-24993958-20151020211700/@comment-26397825-20151102024810

I think the obsidian was more for the aesthetics than anything else, so perhaps if there is a metal or minral similar in aesthetics but strong enough to withstand damage, it would work?

Though, I do have to remind you. Aura. Cinder was able to use obsidian blades to block Ruby's strikes without them shattering - it's not too unbelievable that this character would be able to do something similar.