Excalibur is a legendary sword with a sleek, double-edged blade that tapers to a sharp point, featuring a subtle wave pattern along its length reminiscent of flowing water. The blade is forged from a mysterious, gleaming metal that appears almost luminous, with a polished finish that reflects light with a faint blue hue. The hilt is wrapped in dark leather, adorned with intricate gold engravings of ancient Celtic knots, and the pommel is set with a large, deep blue gemstone that pulses softly, suggesting magical properties. The crossguard is elegantly curved, resembling wings, and is made of the same gleaming metal as the blade, with fine etchings depicting scenes of legendary battles.