You have a +3 bonus to attack and damage rolls made with this magic weapon. This weapon also deals an additional 2d10 radiant damage.

While wielding this weapon you have access to the following abilities.
My Guiding Headlight
 -While attuned to this sword you have 30ft of Truesight and attack rolls you make with this weapon can't be made with disadvantage. 
Dazzling Gleam
 -As an action, you can brandish this sword and cause glaring lights to flash out before you in a 15ft cone. Creatures within this cone can make a DC19 con save or take 3d6 radiant damage and be blinded until the end of their next turn.
Pure of Heart
-Once per long rest as an action you can enter `Pure of Heart` which will reduce your movement speed to 0 and lose out on your main action for each subsequent turn as long as you are within Pure of Heart. It takes an action to end Pure of Heart. For each turn spent in Pure of Heart, you gain a `Royal Wrath` charge. When taking the action to end Pure of Heart, you swing this sword down in the direction of a creature and cast Flame Strike with a DC of 22. It deals an additional instance of a 4th-level Flame Strike's damage for each charge of Royal Wrath you have however, if you are to drop below 10% of your maximum hitpoints, Pure of Heart automatically ends and does the damage of a normal 4th-Level flame strike regardless of how many Royal Wrath charges you have. 
Headlights Come in Pairs
-Once per long rest as a bonus action you can remove the above abilities of The Royal Headlight Sword and spawn a clone of yourself, made out of light. This clone vanishes after 1 minute and has a movement speed equivalent to half of your walking speed. When you attack with this clone active, the clone will make an attack using your attack roll modifier and deal 2d10 radiant damage to a different creature whenever you make an attack. If this clone is to be attacking the same creature as you, it only makes attack rolls when you miss. You can swap places with this clone as a bonus action. When this clone fades the above abilities return.

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, Sense: Truesight, Damage: Radiant, worthy soul, Damage, Debuff, Combat, Versatile, Sap