Hewellen as a playable race

Homebrew

Hewellen

Hewellen are a dwarvish culture/ethnic group that live in the Forges. They seem to have some fiendish ancestry, and they are famous for their magical artificing. Whether because of the former or the latter (or both), Hewellen are somewhat magic-touched in themselves.
ability score increase: +1 Str +2 Con (or +2 to one ability, +1 to another)
age: Dwarves mature at the same rate as humans, but they’re considered young until they reach the age of 30. On average, they live about 250 years.
Size: Medium
speed: 25ft
Languages: Common, Dwarvish, Undercommon
race features:

Superior Darkvision. Accustomed to life underground, you have superior vision in dark and dim conditions. 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.

 

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.

 

Artificer's Lore. Whenever you make an Intelligence (Arcana) check related to magical, alchemical, or technological items, you can add twice your proficiency bonus instead of any other proficiency bonus that may apply.

 

Hewellen Magic. Whether due to a bit of fiendish ancestry, or to time spent in the elemental magic of underground magma pockets, Hewellen have some native magical abilities. 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 Heat Metal spell 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 on 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.

Hewellen resemble hill dwarves, their close cousins, except that their skin tends towards greyness. Some Hewellen, though not all, have horns—a reminder of their supposed fiendish ancestry.