Prerequisite: 5th-level Artificer
Item: sword hilt or arcane focus (requires attunement)
While it is grasping this magical object, the wielder can use a bonus action to cause a blade of pure radiance to spring into existence, or disappear, from this object. While it exists, this magic item emits bright light in a 15-foot radius and dim light for an additional 15 feet beyond that radius. This luminous blade is considered a simple melee weapon with the finesse property, and it deals 1d8 radiant damage on hit.
At 11th level, this weapon gains a +1 bonus to its attack and damage rolls. This bonus increases to +2 at 17th level.