Jade Gauntlet

A piece of armor from another plane, and one of the six artifacts for unlocking Brizoor Waal. Native to Mikto, Plane of Secrets.

The earth quakes and the air above fills with crackling green energy. You hurry through the door into an underground chamber. On a pedestal there, you find a gauntlet carved from a single piece of jade, and you slip it into one of the chainmail durgolium sacks that Tarik gave you. - Taron's Trophy (RPA-ADV2) 

Found after opening the durgolium trapdoor in the Ancient Chapel of Jolev, the Jade Gauntlet is revealed to be one of six keys for opening Brizoor Waal;

The gate is powered by six artifacts, and this gauntlet is one of them. - Taron's Trophy (RPA-ADV2) 

When traveling to Mikto, Plane of Secrets, the rest of the armor, made for a four-armed, four-winged warrior, is found.

Reunited with its set, the Jade Gauntlet reactivates and comes to life;

A humming sound arises from your bag. You dig around to discover the jade gauntlet is strangely animated. Its noise is answered by whatever is contained within the cracking glass. You approach the case and discover a full suit of jade armor, made to cover four arms and an equal number of wings. One arm is missing its gauntlet. As you grow nearer, the gauntlet’s buzz grows louder, and the glass case shatters.

The armor springs to life as a luminous spirit fills it. It spreads its wings and stretches its arms and legs. After reporting to you in a strange series of buzzes and beeps, it launches into the air and lets out a bone-piercing shriek, shattering the cases of every specimen in the room. You hear many machines and creatures returning to life. - Gate of Brizoor Waal (RPA-ADVF)