Unbreakable

From: Huntress
Description: Alas, I’ve tried a hundred combinations, but I still haven’t been able to forge a universal blade. It turns out to be too unstable. We need a completely indestructible material that can withstand even the heat of hellfire. I heard there was an invincible soldier in your world. What if you try to get your hands on his shield?
Completed: That’s strange... The shield is all worn and scratched up, as if he experienced hundreds of battles. Do you know what these white triangles mean? Nevertheless, I won’t keep you here. I’m already itching to try a new composition with added vibrilite.