You gain a +2 bonus to attack and damage rolls made with this magic weapon and it deals radiant damage.
In addition, while attuned to the long sword you gain advantage on Charisma (Persuasion) and Dexterity (Initiative) rolls, but you gain disadvantage on Wisdom (Insight) rolls.
Righteousness was named by Kurtus of Daggerford, a paladin of Tyr. Kurtus claimed that as he faced certain doom at the hands of the vampire, Xeera Nyl, Tyr gifted his blade with an enchantment that turned the tide of the battle and allowed him to destroy the Blood Queen of Illefarn. While the blade was buried with the paladin, his tomb was soon robbed and Righteousness again stalked the Realms.