Mask of the shapeshifter

The mask of the shapeshifter was an enchanted decorative helmet from the late 15 century DR.

Powers
The full-head-covering helmet resembled a collection of four faces, one of them resembled that of a humanoid lizard creature. The mask allowed the wearer to cast the disguise self spell at will, making it an invaluable tool for actors, detectives, or just those who had a mirror and some time to kill.

History
The mask of the shapeshifter's history was a mysterious and a gory one. Reportedly, the item's magic came from some bloody event in the past. The mask of the shapeshifter could be found in the Western Heartlands, along the banks of the River Chionthar in the late 15 century DR.

Trivia

 * This item, alongside other items included in Baldur's Gate 3's Digital Deluxe Edition, originates from Larian Studios' previous work, Divinity: Original Sin 2.