Excalibur

Excalibur may refer to:
 * The recurring weapon.
 * The ability in Final Fantasy X-2.

Etymology
The is King Arthur's sword, the one he obtained from the Lady in the Lake, after the one he pulled from the stone broke. Excalibur itself is thought to be derived from. It is also said in the legends to be able to cut through any thing and is also said to be the strongest sword ever because of it.