You gotta gives us more than just "obsidian knife". Images bro, images.
It's a knife with a blade made out of black, shiny, jagged rock. AKA obsidian.
so whats the point of this ?
obsidian is the strongest current material. well, excluding diamonds.
You play too much minecraft.Obsidian is quite a fragile material. It can be sharpened down quite easily, and is nowhere near as strong as diamond. It's actually about has fragile as glass. Considering it IS glass.
I'd prefer something a just a little more primitive looking than that.Possibly like a sacrificial knife or something.