Aculeus

Weapon Magical, Ammunition, heavy, two-handed Uncommon (this item requires attunement)

Fashioned from the tail of a large scorpion. This longbow makes use of the scorpion's barb, allowing the user to string the bow and let the left over poison drip onto the point of the arrow. This weapon deals an additional 1 poison damage. When you score a critical hit, the target must make a DC 13 Constitution saving throw, taking 2d6 poison damage on a failed save, or half as much on a successful one. Scorpion's Hair: Once per day, the hairs along the length of the tail grant you advantage on perception checks against hidden enemies. This ability recharges each dawn. [Base Material, Adornment]