A glowing, ornate sword with a blue gem and intricate designs.

In the depths of a starlit void, a majestic, ethereal sword glows with an otherworldly blue light, its blade shimmering like a celestial river. The sword, adorned with intricate silver leaf patterns, exudes a sense of ancient magic and power. Its hilt, wrapped in a deep blue material, features a glowing blue gem at the base, adding a touch of mystique. The background is a dark, starry expanse, dotted with twinkling white and blue stars, enhancing the sword's ethereal glow and creating a serene yet powerful atmosphere. This image captures the essence of a mythical weapon, ready to wield the forces of the cosmos.