You don’t have a bonus to attack and damage, so this only better than a non-magic javelin in that you don’t need to juggle items and that it’s magical. It’s not a wonderful It’s not entirely crystal clear why This is actually the case, but at enough time that Eberron: https://triton-dnd69278.sharebyblog.com/28035719/an-unbiased-view-of-elven-characteristics