Scroll, unknown rarity (requires attunement by a Unknown type of Attunement.)
Scroll of Ancalagon. It appears to be written in a mix of Draconic and Ignan. It has been assumed that only the pure Ancient Obsidian Dragons can read it, but it hasn't been confirmed. Legends say it can grant the power of the original being who wrote this scroll, Ancalagon, although many a dragonflesh grafters have been formed as an attempt to use it.
Notes: Charmed, Unknown type of Attunement.