The Gidbinn is a mystical dagger with a curved, serpentine blade that gleams with an eerie, greenish hue, suggesting enchantment or poison. The hilt is wrapped in ancient, weathered leather, adorned with small, intricately carved bone charms that rattle faintly when moved. The blade's surface is etched with cryptic runes that glow faintly in the dark, hinting at its dark origins and powerful magic.