Board Thread:Speculation House/@comment-27092449-20151018200124/@comment-27087951-20151110014325

DeletedContent wrote: In reality, obsidian swords would be extremely brittle. They reinforce the weapons with their Auras to prevent them from damaging or breaking. Cinder did the same when she used the obsidian swords.

So while obsidian swords would break in 1-2 hits to almost anything, here they can actually last a bit.