The Lutece Device is a complex, Art Deco-inspired contraption with steampunk elements, featuring a brass and copper construction with intricate engravings. Its form is a combination of geometric and organic shapes, with a central spherical core surrounded by rotating rings and protruding gears, all meticulously detailed to reflect its advanced yet archaic technology. The surface is polished to a high gloss with areas of intentional tarnish to suggest age and use, while glowing blue energy pulses through etched channels, indicating its otherworldly power.