Azariah's Quiver of Perfect Evocation

This quiver is the penultimate of the Quivers of Evocation. This quiver took over 400 years to create by the high-elf Azariah, who first created the art of Arcane Archery. She spent half her lifetime learning everything there was to know about the school of Evocation and pouring it into her masterwork. Once completed, the quiver saw another two centuries of use by Azariah before she was murdered in her sleep by her tiefling apprentice, Cyran Laflan. Cyran was himself slain soon after and Azariah's masterwork fell into obscurity and myth. 

The Quiver can hold 70 longbow arrows. Any ammunition inside becomes imbued with the magic of the quiver and becomes magical ammunition. Upon attunement, the wielder chooses a damage type and from then on any ammunition drawn from the quiver deals 2d10 Fire, Cold, Lightning, Acid, Thunder, Poison, Necrotic, or Radiant damage. This magic only lasts 12 seconds after the ammunition is pulled from the quiver. Any ammunition that is fired while imbued with magic is destroyed upon use, regardless of a hit or a miss. 

As a bonus action, the owner of the quiver can change the damage type to any other from the list.

Spirit of the Quiver: The soul of the Enchantress Azariah lives on in her masterwork, and will bond with whoever attunes to it. She is a neutral good entity who has hundreds of years of experience with Evocation Magic and enchanting. She is extremely vain and looks down on most other races beyond elves, but can be befriended with conversations of magic and appealing to her ego. While attuned to the quiver, and while in good standing with Azariah,  you beseech Azariah's knowledge and she can make an Arcana (INT) check with +18 to determine magical qualities and enchantments.

Magical Properties of the Bow while attuned: 
- Intelligence increases by 2 (to a max of 24)
- You can use an action to cast the 5th level spell Swift Quiver, with the ammunition created being magical. After you cast the spell, roll a d6. On a roll of 1–5, you can’t cast it again until the next dawn.
- You gain a vulnerability to poison damage, as Azariah was murdered by a magical poison that has tainted her soul
- Your features slowly take on the semblance of Azariah's. After 2 days, the creature's ears take on an elven appearance, after 4 days the creature's hair grows to mid back length and will grow back in under an hour if cut. After 1 week, the creature's physique slims to that of an elf. The physical changes wrought by the quiver aren’t considered magical in nature (and therefore can’t be dispelled), but ending attunement will reverse all the changes in the same time-frame they occured, except for the ears, which will remain changed unless undone by the effects of a greater restoration or wish spell

Notes: person with spellcasting ability and proficiency with a longbow, Buff, Combat