"Not bad luck!"
Regarding the gift from his mother, the Golden Horn that can summon the Holy Light Angel from Heaven, Noah had studied and appraised it.
Setting aside the factors of race, from a neutral perspective, this is a very fine treasure, because its base effect guarantees the summoning of a squad of Holy Light Angels.
Considering the angelic race template, a squad of Holy Light Angels is enough to slay dragons, or even adult Dragons. Red Dragons would have to flee upon seeing them. Such combat strength is enough to influence the outcome of a medium to small-sized war, from an adult Dragon's viewpoint, giving it to one's child for protection can be considered very prudent.
This is just the minimum of what the Golden Horn offers. If luck is favorable, there might be unexpected gains, as it is not a targeted summoning, but random, and so higher-ranked angels might respond, albeit with a decreased probability.