Sharpshifter

Sharpshifter looks like a large chunk of obsidian when no one is attuned to it. When it is attuned wielder, they can morph and change the weapon's shape as a bonus action. It can shift into any known mundane weapon. It can also shift into any other shape that the DM deems doable with the amount of metal available. Sharpshifter can also take the form of armor for a section of the body (about one limb, half of a torso, or helmet). This armor grants the wearer +1 AC. If attunement is ever broken, Sharpshift