Aegis-fang

In Forgotten Realms, Aegis-fang (derived from the mythical shield Aegis) is the weapon of Wulfgar, son of Beornegar of the Elk Tribe. It was forged for him by his adoptive father Bruenor Battlehammer while he was in servitude to the Dwarf king. It is made from pure Mithral with a diamond coating magically adhered during the forging. Its head is engraved with magical inscriptions which are covered by the symbols of the Dwarven god Dumathoin, "the keeper of secrets under the mountain" and the god of knowledge.

It is a large and heavy maul, perfectly balanced for Wulfgar. Any person not over 6'5" and without considerable strength has a hard time wielding it properly. It is attuned to its wielder and will magically return to their hand upon telepathic command.

Wulfgar has been trained extensively with this weapon. He has used it in two battles against dragons, Ingeloakastimizilian and Shimmergloom both with triumphant results. He also used it in a battle beside Drizzt Do'Urden and Bruenor Battlehammer againts the Balor, Errtu, where the companions were also victorious.

Appearances
As well as appearing in many of R.A. Salvatore's novels, the weapon also appeared in Baldur's Gate 2: Shadows of Amn. It tried to explain that only the most powerful of it's enchantments worked in Wulfgar's hands and as such, if he is slain in the game it only functions as a +3 warhammer for you.