Goliath

ability score increase: Your Strength score increases by 2, and your Constitution score increases by 1.

age: Goliaths have lifespans comparable to humans. They enter adulthood in their late teens and usually live less than a century.

alignment: Goliath society, with its clear roles and tasks, has a strong lawful bent. The goliath sense of fairness, balanced with an emphasis on self-sufficiency and personal accountability, pushes them toward neutrality.

Size: Medium

speed: Your base walking speed is 30 feet.

Languages: You can speak, read, and write Common and Giant

race features:

Little Giant

You have proficiency in the Athletics skill, and you count as one size larger when determining your carrying weight and the weight you can push, drag, or lift.

Mountain Born

You have resistance to cold damage. You also naturally acclimate to high altitudes, even if you've never been to one. This includes elevations above 20,000 feet.

Stone's Endurance

You can supernaturally draw on unyielding stone to shrug off harm. When you take damage, you can use your reaction to roll a d12. Add your Constitution modifier to the number rolled and reduce the damage by that total. You can use this trait a number of times equal to your proficiency bonus, and you regain all expended uses when you finish a long rest.