Phantom Sword

The Phantom Blade is the only thing that can harm Bellum and Phantoms in The Legend of Zelda: Phantom Hourglass. It is composed of three types of Pure Metals.

Components of the Phantom Blade
Link is told to find three forms of Pure Metals, Crimsonine Steel, Azurine Steel, and Aquanine Steel, and take them to the legendary blacksmith Zauz to forge the Phantom Blade.

See also: Crimsonine Steel, Azurine Steel, Aquanine Steel, Pure Metals