This blade was created by the sun dragon Kohryu, and was given to Taira no Masakado, then passed down to his daughter Satsuki-hime. 

Zantaiyō gives the user a +3 bonus to attack and damage rolls made with this magic weapon. 

• 2 minor beneficial properties.
• 1 major beneficial property.

Shikai. As a bonus action, you call forth the hidden powers of this blade. You summon a blade in your empty hand. This blade that acts as a 7th Elemental Weapon (fire damage).

• Ryuenjin. Zantaiyō absorbs and condenses the user's radiant power before releasing it at the tip of the blade. Make a ranged attack (60/120) against a creature within range. If you hit, the target takes the weapon's damage.

Bankai. As an action, You gain immunity to fire damage and resistance to radiant damage. This weapon ignores resistances and immunities to radiant damage. In addition, this weapon deals extra 3D8 radiant damage. The times that this ability can be used is half the user's proficiency bonus (minimum of 1). The weapon regains all charges after a long rest.  In addition, you can gain the following.

• Radiant aura. A magical bright aura begin to emit from your body. You shed a a bright light in a 60 foot radius and dim light in a 60 foot radius, this bright light dispels magical darkness within its radius. Any creature that hits you with a melee attack within the Radiant Aura' suffers 1d8 radiant damage.
• Ryuenjin Tenshou. Ryuenjin becomes a devastating projectile. Any creature within 120 feet cone of you must make a dexterity saving throw (DC 22) or take 12D8 radiant damage on a failed save, or half of much on success. (Recharge 5 - 6)

The Bankai lasts for one minute. You can use this feature an amount of times equal to half of your proficiency modifier (minimum of 1) before taking a long rest.

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, Combat, Versatile, Sap