The Sword of Ek Chuaj was a legendary Mayan weapon alleged to have the power to level entire cities with just one swipe. It was accessed by means of the Mask of Ah Puch, which acted as both a key and a map to the temple in which the sword was kept.
Ah Puch was assigned to defend it at all costs from thieves.
The pop-up version of the episode Ultimate Weapon revealed the so-called power of the sword really was just a legend, despite its guardian.
- Ultimate Weapon (first appearance; destroyed)