It was likely that no one had ever seen so many names on a sword before. Anyone could make up random names for a sword, but the Emperor Killing Sword's twelve names represented twelve terrifying powers.
For example, for the Emperor Path Sword, anyone who held the sword, even if they were just a King or an ordinary person, they could use the mighty Emperor's Power.
For the Sword Path Sword, anyone who wielded the sword could control unimaginably powerful sword intent. Even though that sword intent was not from one's own comprehension, they would still be able to control it.
For the Ghost Master Sword, anyone who used the sword would be able to wield powerful Ghost Power, and the sword would be able to suppress countless Ghosts. No Ghost would not fear it.