Your Constitution score increases by 2, and the maximum for your Strength score is 22.

Jötunnkyn reach adulthood around 30, and the oldest of them can live for 500 years.

Jötunnkyn live on the fringes of society, rarely interacting with others and relying on self-sufficiency. They are generally neutral. 

Jötunnkyn range between 7 to 8 and a half feet tall and weigh between 280 and 340 pounds. Your size is Medium.

Your base walking speed is 30 feet. You ignore difficult terrain caused by snow.

Your creature type is Giant, rather than humanoid. You count as one size larger when determining the creatures you can grapple, your carrying capacity, and the weight you can push, drag, or lift.

You have resistance to cold damage. You're also acclimated to high altitude, including elevations above 20,000 feet.

As an action, you can enter a rage for one minute. During this minute, your strength score increases by 5, you have advantage on strength checks and saving throws, and you count as a huge creature when determining what creatures you can grapple, your carrying capacity, and the weight you can push, drag, or lift. 

You are immune to all damage while this ability is active, but every time you would take an amount of cumulative damage equal to your level, the time that this ability is active is reduced by 6 seconds (1 round). Once you use this feature, you gain one level of exhaustion and cannot use it again until you finish a long rest.

You have proficiency with the Survival skill and one pair of artisan's tools of your choice.

You can speak, read, and write Common, Primordial, and Giant.