Soulshard

The bow once favoured by Khuzami and now used by Kaida Greystone. Khuzami did not speak of where he got Soulshard, but he did occasionally hint at its great power. On more than one occasion he said to Kaida, "quiet, she's sleeping," in regards to the weapon, although he would never explain what he meant by it. On the day that he left, Kaida found Soulshard resting on her bed. There was no note, but it was clear what the message was: it was her turn to wield her father's weapon. 

Appearance. 

Soulshard is a beautifully crafted bow, decorated with what appears to be sapphires, though they are shaped like dragon scales and glimmer in a way that hints at unlocked magic.

 

Mechanics.

Whenever you roll a 20 on your attack roll with this weapon, each creature of your choice within 5 feet of the target takes 5 force damage.