Bituminous Orb
Wondrous item, very rare (requires attunement)
A tarlike substance leaks continually from this orb, which radiates a cloying darkness and emanates an unnatural chill. The bearer of the bituminous orb gains darkvision (60 feet) and immunity to necrotic damage, and has advantage on saving throws against spells and effects that do radiant damage. A bearer who doesn't worship Chernobog, however, is also likely to receive cryptic messages from the god in the form of horrifying nightmares and other harmful or unsettling effects.
The orb has 6 charges and regains 1d6 expended charges each day at dawn. As an action, the bearer can expend 1 charge to fire a ray of viscous material at a target within 60 feet. The ray strikes the target automatically, and the target must make a successful DC 15 Dexterity saving throw or be grappled (escape DC 15) and blinded. Only one creature can be grappled by the orb at a time. A grappled creature takes 9 (2d8) necrotic damage at the start of its turn. The bearer of the orb can move the grappled creature up to 20 feet but can't move it more than 60 feet away from the orb, and can end the grapple at any time (no action required). As an action, the bearer of the orb can expend 2 charges from the orb to crush a grappled creature, inflicting 22 (5d8) bludgeoning damage.