Soul Liquidator

The first sword called Soul Liquidator was made as one of the first weapons ever, as the Twenty Gods fought to establish dominance in the new universe.

The second one was made a thousand years later in order to murder the God that had won the previous fight.

The third and fourth ones were made at roughly the same time by two princes looking to win their kingdom.

The fifth through nine millionth were inside a video game, and a whole lot of merchandise versions.

This last fact makes the spell that summons a random one nigh on totally useless.