Dwarf

Kingdoms rich in ancient grandeur, halls carved into the roots of mountains, the echoing of picks and hammers in deep mines and blazing forges, a commitment to clan and tradition, and a burning hatred of goblins and orcs – these common threads unite all dwarves.
Ability Score Increase: Your Constitution score increases by 2
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.
Alignment. Most dwarves are lawful, believing firmly in the benefits of a well-ordered society. They tend toward good as well, with a strong sense of fair play and a belief that everyone deserves to share in the benefits of a just order.
Size. Dwarves stand between 4 and 5 feet tall and average about 150 pounds. Your size is Medium.
Speed. Your base walking speed is 25 feet. 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.
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.
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, spiked hammer.
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. Dwarvish is full of hard consonants and guttural sounds, and those characteristics spill over into whatever other language a dwarf might speak.

Hill Dwarf

As a hill dwarf, you have keen senses, deep intuition, and remarkable resilience.
-Ability Score Increase. Your Wisdom score increases by 1.
-Dwarven Toughness. Your hit point maximum increases by 1, and it increases by 1 every time you gain a level.

Mountain Dwarf

As a mountain dwarf, you're strong and hardy, accustomed to a difficult life in rugged terrain. You're probably on the tall side (for a dwarf), and tend toward lighter coloration.
-Ability Score Increase. Your Strength score increases by 1.
-Dwarven Armor Training. You have proficiency with light and medium armor.

Duergar

Duergar are dwarves whose ancestors were transformed by centuries living in the deepest places of the Underdark. That chthonic realm is saturated with strange magical energy, and over generations, early duergar absorbed traces of it. They were further altered when mind flayers and other Aberrations invaded and performed horrific experiments on them. Fueled by Underdark magic, those experiments left early duergar with psionic powers, which have been passed down to their descendants. In time, they liberated themselves from their aberrant tyrants and forged a new life for themselves in the Underdark and beyond.
-Superior Darkvision. You can see in dim light within 120 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.
-Psionic Fortitude. You have advantage on saving throws you make to avoid or end the charmed or stunned condition on yourself.
-Duergar Magic. When you reach 3rd level, you can cast the Enlarge/Reduce spell on yourself once with this trait, using only the spell's enlarge option. When you reach 5th level, you can cast the Invisibility spell on yourself once with this trait. You don't need material components for either spell, and you can't cast them while you're in direct sunlight, although sunlight has no effect on them once cast. You regain the ability to cast these spells with this trait when you finish a long rest. Intelligence is your spellcasting ability for these spells.
-Sunlight Sensitivity. You have disadvantage on Attack rolls and Wisdom (Perception) checks that rely on sight when you, the target of your attack, or whatever you are trying to perceive is in direct sunlight.