raw zinc
These are old weapons that can be found in buried remains. The weapon is rusted from the long years in the ground. The magical properties of the dungeon has seeped into the weapon in the form of rust. Though this gives the weapon special benefits. It reduces the power in the attacks.
The weapon has a 1/5 chance to poison the enemy but it has a debuff.
Ideas:
Benefits less from upgrades
Has a chance to break
Deals less damage
Less accuracy
Please post more ideas!