Circlet of Barbed Vision

The Circlet of Barbed Vision is one of the Vestiges of Divergence. Upon wearing this circlet of gnarled onyx, black barbs dig into the wearer's head, imparting power as it twists the wearer's appearance to amuse the Spider Queen.

Dormant State

 * While wearing this circlet, the wearer's Charisma score decreases by 2. They also have advantage on initiative rolls.
 * When making an attack roll, the wearer can use their reaction to gain a +5 bonus to the roll. They make this choice after they see the roll, but before the DM says whether the attack hits or misses. The wearer cannot use this ability again until they finish a short or long rest.

Awakened State

 * The wearer gains resistance to poison damage and immunity to the poisoned condition.
 * The ability to gain a bonus to an attack roll can be used twice between rests.

Exalted State

 * The wearer gains immunity to poison damage and the poisoned condition.
 * The wearer can see invisible creatures and objects.
 * The ability to gain a bonus to an attack roll can be used three times between rests.

History
The Circlet of Barbed Vision was robbed from the Blightstar in 842 PD by the Exandria Unlimited party. The item actively repulsed characters of good alignment who got too close, causing them to vomit black ichor. Additionally, the circlet gave Opal a vision of spiders and one large spider leg that reminded everyone else in the party of Lolth, and Dorian Storm was specifically reminded of the Vestiges of Divergence. After touching the Circlet, Dariax Zaveon's eyes turned completely black and stayed black for days; when he looked in a mirror, he saw spiders skittering across the faces of the people around him.

Later, the party encountered a dark possible-future version of Fearne Calloway who had put on the circlet and become more powerful.