Sword

A sword is a weapon, not unlike a large knife, that was used on many planets for thousands of years. Even when it was superceeded, the sword was still carried ceremonaly as a symbol of honor. (DW: Revelation of the Daleks)

Morgaine's forces, the S'rax, used swords to due battle with. The powerful sword called Excalibur was the sword of King Arthur. (DW:Battlefield)

The Sycorax also used swords to combat each other in their rituals. The Doctor and the Sycorax leader had a sword duel, which the alien lost. (DW: The Christmas Invasion)