Spitfire

A rapier with a black, charred blade, still very sharp. It has a guard made of shined steel designed in the shape of flames shooting out from the handle.

You can use a Bonus Action to speak this sword's command word, causing blue flames to coat the blade. These flames shed bright light in a 30-foot radius, and dim light for an additional 30 feet.

While the sword is lit, it deals an additional 1d8 of fire damage, and the fire can leap to a different creature of your choice within 5 feet of it. The second creature takes half of the rolled fire damage.

The flames last until you use a Bonus Action to speak the Command word again or until you drop or sheathe the sword.