Flame Tongue

You can use a bonus action to speak this
magic sword's command word, causing flames to
erupt from the blade. These flames shed bright
light in a 40-foot radius and dim light for an additional 40 feet. While the sword is ablaze,
it deals an extra 2d6 fire damage to any target
it hits. The flames last until you use a bonus
action to speak the command word again or until
you drop or sheathe the sword.
Requires attunement.