Plumastone

A plumastone was a piece of obsidian enchanted with the pluma spell create talisman.

Description
A plumastone could only be created by someone skilled both in weaponsmithing and the use of pluma magic. Plumastones could be crafted into a variety of weapons including macas, daggers, spears, or arrows.

Powers
The pluma magic protected the obsidian plumastone from breaking. Additionally, it made it easier for the wielder to strike their targets, and inflict more physical harm when they did so.