Rex (construct)

Rex was a shield guardian and companion of the rock gnome Zox Clammersham that lived within Undermountain during the 15 century DR.

Description
Unlike other shield guardians, Rex was not keyed to a magical amulet. As such, he could never be commanded by another individual. Thanks to Zox, Rex had a greater invisibility spell stored within itself.

Somewhat unique in appearance, Rex had gold stars and crescent moons painted on its surface.