Amaterasu's Sunburst Katana

This unique +2 katana has a briliant red blade with silver threaded white hamon that glows with the natural rays of the sun at all times. Amaterasu emerging from the Heavenly Rock Cave is engraved on both sides of its Habuki, and an eight rayed rising sun is engraved in its Tsuba. It's Saya is painted to look like the rising sun flag, and Saya and Tsuka are both wrapped in the finest of red and white checker pattered silk.

While attuned to the katana, your strength score rises by two points.  You also do an additional 4d6 radiant damage to all attacks with this katana and all radiant damage done by you ignores resistance and immunity. You also become immune to the blind condition and fire damage.

While unsheathed, the katana's blade emits bright light in a 40-foot radius and dim light for an additional 40 feet. The light is sunlight. You also gain of Truesight.

Lastly, the katana allows you to cast Sunburst once per day.

Proficiency with a Longsword allows you to add your proficiency bonus to the attack roll for any attack you make with it.

Notes: Bonus: Magic, Damage: Radiant, Bonus: Strength Score, Immunity: Blinded, Immunity: Fire, Sense: Truesight, Damage, Combat, Versatile, Sap