[Polymer] Item - Owl's Peer (Patreon)

The essence of a giant owl suffuses this biosynthetic eyeball. This bio-augment is most common of all polymutics because the utility of the owl eye far outweighs the risks of the grafting procedure — provided the recipient is not squeamish.

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Owl's PeerWondrous item, polymutic, rare (optional attunement) 

This eyeball is magically preserved from rot. To gain its benefits, the eye must be permanently grafted to a willing recipient over the course of 4 hours, which replaces one of the recipient's eyes. The painful procedure must be performed by an experienced surgeon proficient in Medicine, who makes a DC 15 Wisdom (Medicine) check at the end of each hour of procedure. On a failed save, the recipient loses 2d8 hit points. Once grafted, this eye cannot be removed unless the recipient allows it. 

Distant Sight. While this eye is grafted to you, you can see clearly up to 1,000 feet away without difficulty, able to recognize details as though looking at something 10 feet away. Additionally, dim light doesn't impose disadvantage on your Wisdom (Perception) checks. 

Optional Attunement. You can also attune to this eye while it is grafted to you. If you do, you gain the following benefits:

Your Wisdom score increases by 1, up to a maximum of 21, unless it was already higher.

You can make Wisdom (Perception) checks in place of ability checks that use Investigation if the object of your investigation is within 5 feet of you.