Andvarrs
Andvarrs, in Norse mythology, refers to the dwarf Andvari (often rendered Andvarr) and to the treasure he possessed, collectively known as Andvarr's hoard. The hoard is most famous for a magical ring that is said to doom its owners to misfortune, a motif that recurs throughout the Norse mythic tradition.
The core tale, preserved in medieval Icelandic sources, centers on Loki visiting Andvari to seize his wealth.
In the Völsunga saga, the Andvarr episode underpins the fate of the Volsung lineage. The ring and
Scholarly note that the Andvarr narrative is one of the best-attested cursed-treasure motifs in Norse literature.