Bloodscryer Oculus

Alter: These red goggles have a second set of lenses that magically adjust their distance from your eyes to magnify and focus on targets. While you're attuned to these goggles, you are unaffected by visual obscurity, such as fog or smoke and can see up to 60 feet in ordinary and magical darkness. If you already have darkvision, the goggles increases its range by 60 feet. Additionally, you gain advantage on Perception checks that rely on sight.

These lenses are also imbued with several innate spells. While wearing the goggles, you can cast the following spells, using your spell save DC, but can only target creatures whose blood you can see: hunter's mark (3rd level), locate creature, or scrying. Casting a spell in this way does not require you to concentrate on the spell in order to maintain it. Once the oculus casts a spell in this way, it can't cast that spell again until the next dawn.

Attunement: Ranger
Rarity: Legendary
Type: Glasses
Cost: ???

Griffons Saddlebag, Vol 1