If three creatures are attacked with the weapon while they are unaware of the wielder’s presence then the weapon unlocks the spell storing ability.
Originally given to a child in a noble family as a gift. Her family was politically assassinated and when the assassin came for her she caught him off guard by charging the assassin and throwing the short sword at his throat killing him. She later went on to do great things with Malakai’s tribe in reclaiming lost land and water sources from radiation. She was not present when Malakai met his end.