Mountain Dwarf

Mountain dwarves live beneath the mountains in massive strongholds, independent city states that mostly fall under the rule of The Kingdom of Clockwork. The chief unit of mountain dwarven society is the clan, and dwarves highly value social standing. Even dwarves who live far from their own land cherish their clan identities and affiliations, recognize related dwarves, and invoke their ancestors' names in oaths and curses. To be clanless is the worst fate that can befall a mountain dwarf.

Ability Scores: Mountain Dwarves tend to have high Strength and Constitution.
Size: Medium
Speed: 25 ft.
Age: Dwarves mature at the same rate as humans, but they're considered young until they reach the age of 50. On average, they live about 350 years.
Size: Dwarves stand between 4 and 5 feet tall and average about 150 pounds. Your size is Medium.
Speed: Your speed is not reduced by wearing heavy armor.
Darkvision: Accustomed to life underground, you have superior vision in dark and dim conditions. You can see in dim light within 60 feet of you as if it were bright light, and in darkness as if it were dim light. You can't discern color in darkness, only shades of gray.
Dwarven Resilience: You have advantage on saving throws against poison, and you have resistance against poison damage.
Dwarven Combat Training: You have proficiency with the battleaxe, handaxe, light hammer, and warhammer.
Tool Proficiency: You gain proficiency with the artisan's tools of your choice: Smith's tools, brewer's supplies, or mason's tools.
Stonecunning: Whenever you make an Intelligence (History) check related to the origin of stonework, you are considered proficient in the History skill and add double your proficiency bonus to the check, instead of your normal proficiency bonus.
Languages: You can speak, read, and write Common and Dwarvish.
Dwarven Armor Training: You have proficiency with light and medium armor.