Life in the wild gives you a natural boon to your Constitution (+2). You may also choose any other ability score to increase by +1.

Eth'ushki have a comparable lifespan to humans. They reach adulthood between 16 and 20 years of age, in accordance with their herd's traditions, and live an average of 80 years.

Wild eth'ushki would be considered chaotic evil by most civilized standards. They hunt other sentient beings, which is usually frowned upon. Despite being intelligent, eth'ushki don't see this as an evil action, and consider themselves as unaligned as any natural predator. Eth'ushki who choose to interact with other cultures can be of any alignment. A proclivity toward evil or unlawfulness is not inborn.

Your true form has a height anywhere between 6 and 9ft. Your weight is slightly bulkier than human of comparable height. Your size is Medium.

Your creature type is fey, rather than humanoid.

As an action, you can change your form into that of a human or a horse. Your appearance in these forms is unique to you, not the mimicry of another person or horse. As a human, your stats and equipment are unchanged. As a horse, your inventory is merged into your new form, you take on the physical ability scores of a Riding Horse, and are unable to speak verbally, but you retain your Int, Wis, Cha, and Skill and Saving Throw proficiencies (like a druid’s Wild Shape). You stay in the new form until you use an action to revert to your true form or until you die. You must revert to your true form before changing forms again.

While you are in human or horse form, a creature can make a Wis (Perception) or Int (Investigation) check against your Cha (Deception) roll to determine your true nature.

You have a swimming speed of 35 feet.

You can breathe air and water.

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 resistance to cold damage. While submerged in at least 5 feet of still water, you gain +1 bonus AC and have advantage on saving throws.

You are an obligate carnivore, and must include meat in your daily meals. If you eat liver, however, you receive (4d6 + character level) poison damage, and become poisoned for (8 - Con modifier) hours.

While in your true form, your claws can be used as natural weapons to make unarmed strikes. Your claws deal slashing damage equal to (1d4 + your Strength modifier).

You know the Friends cantrip. At level 3, you can cast Fog Cloud once per long rest. At level 5, you can cast Hunter’s Mark once per long rest.

You can read, speak, and write in Common and Sylvan.