Excalibur

"[Rumplestiltskin] told me of a legend a magical weapon, one that can help you reclaim your kingdom."

- Prince Charming to Snow White

Excalibur is a magical item featured on ABC's Once Upon a Time. It is only mentioned in the second episode of the third season.

Trivia

 * Legends state only the kingdom's true ruler possesses the strength to free Excalibur from its stone.