You imbue one one-handed parry weapon with intense radiant light. The weapon has the following infusion options:

Blinding blade. The weapon has 3 charges. As a reaction immediately after being hit by an attack, the wielder can expend 1 charge and cause the attacker to be blinded until the end of the attacker’s next turn, unless the attacker succeeds on a Constitution saving throw. A creature that has disadvantage on perception checks in bright light also has disadvantage on this saving throw. The weapon regains the charges when you finish a long rest.
Brightforged Weapon. This magic weapon grants a +1 bonus to attack and damage rolls made with it.
Sunblade. This item appears to be a hilt only. While wielding the hilt, the wielder can use a bonus action to cause a blade of pure radiance to spring into existence, or make the blade disappear. While the blade exists, this magic weapon has the finesse property and deals radiant damage instead of slashing or piercing damage. While the blade is in existence, the weapon sheds bright light in a 20-foot radius and dim light for an additional 20 feet.