In a highly detailed digital illustration with a fantastical and mystical tone, an armored knight with intricately designed, weathered metallic armor adorned with golden filigree stands proudly, exuding strength and mystery, with a glowing, gem-like emblem embedded in his chest plate, set against a misty, dark, atmospheric background, where faint light pierces through illuminating his battle-worn details and creating an ethereal glow amid floating particles that enhance the knight's majestic and enigmatic presence.