Commission: Radovan, the Horizon Walker from Barovia. Will he ever find the Oathbow?

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Commission: Radovan, the Horizon Walker from Barovia. Will he ever find the Oathbow?
My blind scourge aasimar that uses a robe of eyes to assist him. So shiny..
Oathbow
DND Magic Items: Oathbow
Type: Weapon (Longbow or Shortbow)
Rarity: Very Rare
Type of Item: Armament
Attunement: Yes
When you nock an arrow on this bow it whispers in Elvish "Swift defeat to my enemies" (In Elvish in my homebrew that is "mere shatruon ko tvarit paraajay") When you use this weapon to make a ranged attack you can utter or sign the following command words "Swift death to you who have wronged me" The target of your attack becomes your sworn enemy until it dies or until dawn 7 days later. You can have only one such sworn enemy at a time. When your sworn enemy dies you can choose a new one after the next dawn.
When you make a ranged attack roll with this weapon against your sworn enemy you have advantage on the roll. In addition your target gains no benefit from Half Cover or Three Quarters Cover and you suffer no Disadvantage due to long range. If the attack hits your sworn enemy takes an extra 3d6 Piercing damage.
While your sworn enemy lives you have Disadvantage on attack rolls with all other weapons.
A lil something from my partys main weapons!