The Star Sword is the legendary sword from the Kingdom of Anaheim.
The blade can shoot blasts of energy with varying degrees of strength, capable of stunning, electrocuting, and blasting targets with ease.
The blade itself is nearly indestructible, shown to be extremely strong, and durable. It is able to slice through hardened materials such as stone and even powerful magical items with relative ease, even without its powers.
- The Return of Asteroth -- Here, Duke uses a power swipe to strike Asteroth until he is weakened and then slash the dragon's horn on the way by. With Asteroth returned to his human state, Duke then uses the now de-powered sword to destroy both the amulet and Asteroth's helmet.
- The manner in which Duke obtains the sword is very similar to how king Arthur pulled his magical sword from the stone.