Accustomed to the dark forests and the night, you have strong sight 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.

You have proficiency in the Perception skill.

You have advantage on saving throws against being charmed, and magic can’t put you to sleep.

Much like their elven cousins, the Hulder and Hulderkall do not need to sleep, and only require a 4 hour trance. They do not dream and yet they have no sense of the world around them when meditating. When they meld with a tree, the time needed to meditate is cut down to 2 hours. It very useful when in areas that could be considered dangerous.

Your Dexterity score increases by 2. Your constitution increases by 1

You can speak, read, and write Common and Huldierian. Huldierian is a language that, when heard sounds like a birds song. It is not a common language to hear outside of the forest.

Hulder(kall) have a lifespan of 2,000 years, an relatively long life span, when compared to their Elven cousins. it is said that because these beings are more intune with the forest around them, their lives have changed to match the land. 

Hulders, enjoy a little bit of Chaos, and pulling pranks. However, they are also very firm about never going to far with anything they do. They more often than not fall in any good category.

Elves range from under 6 to over 7 feet tall and have slender builds. Your size is Medium.

Your base walking speed is 30 feet, while your climbing speed is 20

Because of the hole that is in their back, they can hide plenty of things inside of themselves. When sneaking something, and you put it in your back, you gain an advantage for sleight of hand checks, and +1 to stealth. 

When you find yourself in trouble, you may use your movement to get to a tree and slip inside of it. When doing this it takes up an entire action. If the tree is destroyed, while you are inside it. you take 4d6 damage. You can use this ability four times, before needing a long rest.

With how they live in the forests, A Hulder(kall) had learned how to speak to plants. 

As the women are the ones who keep their Homes running they are the stronger of the species. They have a +2 to strength and have proficiency in Strength saving throws.

The males of the Hulder(Kall) are the more dexterous of the species. They are usually scouts and the ones to climb through the trees. They have a +2 to stealth and are proficient in Dexterity saving throws.