The "Forgotten Realms" world of Faerûn has several major dwarven subraces. Shield dwarves, also known as mountain dwarves, are the dominant dwarves in the northern parts of Faerûn. These dwarves tend to be fatalistic due to generations of declining numbers. Gold dwarves, also known as hill dwarves, are the dominant dwarves in southern Faerûn. They are generally a more upbeat group than their northern cousins. They primarily reside in and around the Deep Realm, an underground realm surrounding a Grand Canyon-like gorge. Arctic dwarves (also known as the Inugaakalikurit), found in the northernmost reaches of Faerûn, are smaller and stronger than most other dwarves, and immune to cold. Urdunnir, also known as orecutter dwarves, have the magical ability to shape metal and stone, and can walk through the latter. Wild dwarves are short, primitive dwarves found in the deep jungles of Faerûn. Gray dwarves, or duergar, are mainly found in the Underdark, and have an aversion to light. Bruenor Battlehammer, a Shield Dwarf, is the king of Mithril Hall in the "Forgotten Realms" setting who reclaims his homeland from monsters including a shadow dragon named Shimmergloom that he kills single-handedly. Their gods include Deep Duerra, Gorm Gulthyn, Haela Brightaxe, Marthammor Duin, and Thard Harr.