Eitri

Eitri is King of the Dwarves of Nidavellir, a people who have forged weapons for the realms longer than anyone has kept count. Mjølnir is theirs, made at Odin's asking, and the Dwarves have been close allies of Asgard for as long as that. Whatever the stories say, Dwarves are not small. Eitri is the largest and strongest of them, able to crack and reshape Uru with his hands, and he has lived for millennia. Across the universe he is spoken of as the smith who can make the most powerful weapons there are.