The seals are the determining factors of power which are passed on to royals by the divine beings to every first born.A seal has 3 markings in which the first marking determines longevity where the seal bearer lives for a millennial , the second marking determines wings of the divine in which the bearer can manifest the wings of the divine being themselves and the last marking determines spiritual vision where the bearer can see soul's,spirits and realms which cannot be seen to the human eye. These 3 are together called as the angelic triad and wielded only by the royal bloods.
The holy weapon are unique to each great nations and the nations rule rely on these weapons wielded by the royals.The weapon chooses its wielder and determines who is worthy.