|This article is about a/an weapon in Power Rangers Operation Overdrive.|
Excelsior is a magical and a sacred sword protected by an ancient mythical goddess, and the only known weapon capable of destroying Sentinel Knight. As such, it was sought after by the villainous Thrax in order to destroy his hated nemesis. Fortunately, he was unable to obtain it, while the Overdrive Rangers received it and gave it to Sentinel Knight, restoring his physical form and granting him new powers.
- While the weapons name is a loose play on Excalibur, the word Excelsior is Latin for "onward and upward", which refers to its status as a part of the Battlizer mode upgrading Mack to a stronger form.