Awakened Black Dragon's Eye

This is the awakened form of the Black Dragon's Eye. After consuming the souls of creatures who's combined HP totals 10,000 or more, The large Black Onyx stone now bears a vertical pupil in the center. The Awakened Black Dragon's eye Serves as the resting place of Nethrigog's soul. Nethrigog, An ancient black dragon, can telepathically communicate with the creature attuned to the Awakened Black Dragon's Eye, though the creature is unable to communicate back.

The Awakened Black Dragon's Eye serves as an arcane or divine focus for the attuned creature.

The creature attuned to this gem is immune to Acid, Radiant, and Necrotic damage.

This gem has 25 charges. While holding it, you may use an action to cast the Create Undead spell from it by expending charges equal to twice the spells level. You may also expend 10 charges to commune with the Awakened Black Dragon's Eye to cast Contact other plane. You may only use this ability to contact Tiamat or Nethrigog (Ancient Black Dragon).Also,  while holding it, you may use a reaction to regain a spell slot up to 5th level by expending a number of charges equal to the spell slot restored. Finally, while holding it, you may use an action to have the gem absorb the soul of incapacitated creature to gain 3d6 charges. Doing this kills the creature.

The gem regains 3d6 charges every dawn.

Notes: Requires attunement