4 levels of holy sword's
From D&D Wiki
Holy Sword - Level 1:[edit]
Weapon (Longsword), Common
Properties:
Category: Martial Melee Weapon
Damage: 1d8 slashing
Weight: 3 pounds
Special: This sword is imbued with a divine essence, dealing an additional 1d4 radiant damage on a successful hit.
Holy Sword - Level 2:[edit]
Weapon (Longsword), Uncommon
Properties:
Category: Martial Melee Weapon
Damage: 1d8 slashing
Weight: 3 pounds
Special: This enhanced holy sword grants a +1 bonus to attack and damage rolls. It deals an additional 1d6 radiant damage on a successful hit.
Holy Sword - Level 3:[edit]
Weapon (Longsword), Rare
Properties:
Category: Martial Melee Weapon
Damage: 1d8 slashing
Weight: 3 pounds
Special: This powerful holy sword grants a +2 bonus to attack and damage rolls. It deals an additional 1d8 radiant damage on a successful hit.
Holy Sword - Level 4:[edit]
Weapon (Longsword), Very Rare
Properties:
Category: Martial Melee Weapon
Damage: 1d8 slashing
Weight: 3 pounds
Special: This legendary holy sword grants a +3 bonus to attack and damage rolls. It deals an additional 1d10 radiant damage on a successful hit. Once per day, the wielder can call upon its divine power to unleash a burst of radiant energy, dealing 2d8 radiant damage in a 15-foot cone (Dexterity saving throw DC 17 for half damage).