Fafnir

In Norse mythology, Fafnir was a son of the dwarf king Hreidmar and brother of Regin and Otr. In the Volsunga saga, Fafnir was a dwarf gifted with a powerful arm and fearless soul. He wore the Aegis helmet and guarded his father's house of glittering gold and flashing gems. He was the strongest and most aggressive of the three brothers.

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After Otr was killed by Loki, Hreidmar received the cursed gold of Andvari's as repayment for the loss of his son. Fafnir and Regin then killed their father to get the gold, but Fafnir decided he wanted it all, turning into a dragon (symbol of greed). Regin then sent his foster-son, Sigurd, to kill the dragon. Sigurd succeeded, but then killed Regin too, upon learning that he had planned to kill him once he had recovered the gold.

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As Fafner, he is featured in Richard Wagner's Der Ring des Nibelungen.

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Dwarf: A dwarf is a short humanoid creature in Norse mythology, fairy tales, fantasy fiction and role-playing games. Dwarves are much like humans, but generally living underground or in mountainous areas. Here they have heaped up countless treasures of gold, silver, and precious stones, and pass their time...

Hreidmar: In Norse mythology, Hreidmar was the avaricious king of the dwarf folk, who captured three gods with his unbreakable chains. He was father of Fafnir, Otr and Regin. He owned a house of glittering gold and flashing gems built by Regin and guarded by Fafnir. After Otr was accidentally killed by Loki, ...

Regin: In Norse mythology, Regin was the son of Hreidmar and foster father of Sigurd. Regin had all wisdom and deftness of hand. Regin built a house of glittering gold and flashing gems for his father. Regin and his brother, Fafnir, killed Hreidmar for the cursed gold he had received from the gods after t...