Hulden have these basic faerie powers:

• Hulden can vanish and become insubstantial by speaking their True Name into a mirror.
• A circle of salt will protect a hulda from supernatural powers for as long as it goes undisturbed.
• Any hulda being may summon a true herd horse, faeriesteed, or fey deer by whistling three special notes.

When a hulda captures a fey, one of these things happens:

• Any fey or mortal who has abused another is captured and killed.
• Any fey who has been lazy (living off the work of others) or neglectful of their duties is captured and forced to serve for seven years.
• Any fey who has worked when they shouldn't (during the twelve nights of the hulden's hunt) is captured and forced to serve for seven years.
• Other vaettir or mortals captured by the hulden who violate one of the above rules are turned into dogs and made to serve for seven years.
• Non-fey Aeonians who have violated one of the above rules are captured and forced to serve for seven years.

Hulden can also cause snow to fall by shaking their bedding; they usually do this to make it snow in territories where they hunt. Hulden live in homes built into the ground under large rocks, which they mark with seven fey lights that protect their homes from evil.

Under the full moon, they can aim their bows without opening their eyes. If they bend a piece of metal with their bare hands during a full moon, they can leave their bodies and project their consciousness outward in the night. They can also take other fey or mortal women (bending metal belonging to them) with them during these journeys to teach them how to fight or to share a feast with them in the sky. They can also speak to and see spirits during a full moon.

They wear masks over their faces that allow them better control of any mystical skills they might have. They carry bows, sickles, and swords that each are imbued with powers unique to the individual. Every hulda has a straw saddle to use on any steed that keeps them from falling. They also carry stinging nettles, which they use to beat abusive people and leave with the abused for good luck.

A hulda can make a spring erupt from large stones by cracking it open with their bare feet. They can make the soil more fertile by letting their water fall on it. If a mortal gives them tribute, their farms will be protected from blight for a season.

They can resurrect slaughtered animals by dropping dew on the animal's wounds. They can control bears by playing fiddle, and they can summon snakes by drawing a line in the grass or dirt with their feet. They can calm and influence horses by looking them in the eyes.

If a man offends a hulda, she can remove his head by tying a string around something he owns so tight it splits apart. The hulden can give a woman protection from abuse, manipulation, deception, and sexual assault by combing their hair for 12 minutes. They can provide protection to abused children as well with a kiss to the head. If a task is considered women's work, a hulda can master it within a year and a day if a fey or mortal who knows that craft has something that belongs to them. If an abused woman drops a spindle down a well in a land where the hulden hunt, the well will become a portal that takes her to the nearest hulda band. If a hulda is alone in unfamiliar territory, they can intimidate lone strangers whom they suspect of intending them harm. If the stranger does intend significant violence, the intimidation can kill them.

The annual leader of the Hunt has a wagon; the rest ride distaves or other flying mounts. During their Hunt, they may only rest in the treetops between midnight and dawn; otherwise, they must remain in the air. During their Hunt, they will spare those who have lost infants to death, kidnapping, divorce, or other circumstances. Every Hunt is accompanied by their dogs (who are mortals captured and turned into dogs), cats, goats, captured fey, spirits and compositionals, and other beings. Those who are hard workers, kind, or in need or protection may be given small gifts, special blessings, or riches during the Hunt.

When all of the Hunts come together for the Great Wild Hunt, they answer to the inmortal Master of the Wild Hunt (at present, the Erlking). This happens every seven years. The united Hunt is chaotic. All national, social, and cultural boundaries dissolve as the Hunt rides out throughout all of Lyrilla to take fey, vaettir, and mortals who have violated The Law of the Hunt, an ancient law about when, where, and why one must hunt, but which has implications beyond the mere act of hunting. The seven parts of The Law of the Hunt are

1. Never kill the fertile prey nor children, for there must be prey next season
2. Hunt only during the season, for the prey are vulnerable outside of the season
3. Use all parts of the prey when possible
4. Aim to kill with as little pain for the prey as possible; if an error is made, fix it
5. Be mindful of what you are targeting; carelessness is murder
6. Take care of your hunting gear, for flawed fear can cause unnecessary harm
7. Share the bounty of your hunt

This can be taken metaphorically, however. For instance, a police officer who makes a wrongful arrest (5), a lord who is too stingy (7), a wasteful farmer (3), a builder whose materials are not good enough (6), etc. will be likely prey.

Those captured during these Hunts belong to the Master of the Wild Hunt alone. The Master will decide their fate. The hulden take up the role of protecting the innocent and granting forgiveness during the Wild Hunt, and scouring the wicked from the world. They have a special place in the Hunt, as they are the only ones allowed to spare someone without consulting the Master; each hulda may do this once during the Wild Hunt.

The hulden protect all women or abused people, no matter what nation or species. Some mortals honor them for this, dressing as them during midwinter and having wild masked processions.