A pair of two curved nodachi sealed away long ago in the mouth of the White Tiger Statue of Hakumen-jinja. The blades are forged from steel so pure that the metal's surface seems reminiscent of the first snow in the mountains of Zan. Any other than the chosen champion of of Byakko would feel that the lightweight blades are impossibly heavy to lift. The right blade, Zan, is fast and nimble for quick strikes while the left blade, Tetsu is heavier, but with far more weight behind its downward slashes.
For the purposes of resistance, the weapon is considered magical and is classified as light for the purpose of dual wielding. It must always be wielded together or works at half potency and does not benefit from the Dusk Lord's Smite.
Dusk Lord's Smite
After a successful hit with Zantetsu, instead of using two-weapon fighting, the wielder can cast Divine Smite every long rest with one charge.
Duskfall
To materialize the weapon, the user must channel for one turn. The weapon's materialization deals 1d10 lightning damage to all creatures in a 5 ft. area around the user.
Proficiency with a Shortsword allows you to add your proficiency bonus to the attack roll for any attack you make with it.
This weapon has the following mastery property. To use this property, you must have a feature that lets you use it.
Vex. If you hit a creature with this weapon and deal damage to the creature, you have Advantage on your next attack roll against that creature before the end of your next turn.
Notes: wielder with a favorable pact with Byakko, the Lord of Iron Dusk in order to use its extra functions., Finesse, Light, Vex