A binding ritual was created to trap Niffins within small, specially made wooden boxes, as no method for killing or defending oneself against a Niffin currently exists. It is a general rule by most magicians that Niffins must be boxed or otherwise banished, as per the incursion protocols at Brakebills on sight, as Niffins have been noted to be incredibly dangerous. Most Niffins can be sealed away, but certain Niffins have been able to escape them. They possess similar invulnerabilities to that of Deities, as there are no known methods of destroying or killing them. Niffins become greatly angered when they are summoned. Upon transforming, a magician loses their shade, which is why most rituals to restore their humanity fail.
When a Magician is consumed by a spell, their body will begin to distort rapidly, their hands will burst into blue flames, and the body will be transformed into pure magical energy. Once a magician becomes a Niffin, they retain their previous overall physical appearance, but their skin partly burns with blue magical energy coursing through them like blood in veins. During this transformation, the Magician loses their Shade.
Products of a failed casting, Niffins are largely an unknown and less studied entity due to their reportedly dangerous, impulsive nature. What is known about these creatures is limited to a few published works, each of which only retains generalized information gathered from secondary sources.
As a Niffin no longer posses a Shade, they are no longer inhibited by morality, stated to merely run off of impulse. Niffins are extremely deadly due to this, even described as bloodthirsty. However, not all Niffins have been attributed to this type of behavior. On one account (e.g Alice), a Niffin insisted that it didn't feel the urge to kill anyone, but rather, wanted to be free to do whatever it wanted and perform beautiful magic. Niffins can be contained, much like cacodemons, within a magical seal on the body, but the magician won't be able to hold such a pure form of magic for a sustained amount of time, and it will eventually kill both the Niffin and the Magician.
The power of a Niffin has been compared to that of a god: Alice Quinn specifically allowed herself to become a Niffin in order to kill The Beast (who wielded magical abilities comparable to a deity), and later expressed the possibility of being able to kill Reynard the Fox, though Reynard refuted this, stating that a Niffin wasn't powerful enough to kill him.
It's been said by a Niffin that they are able to perceive magic to a deeper and more profound degree than a Magician, and are able to perform more complex magic that does not require intricate castings.
Those turned into a Niffin display a vastly increased capability for magic and all that it entails. The distinction of their power is vast enough that a complicated unlocking spell that would've required a genius magician hours to break, was solved by a Niffin in 15 seconds. They are able to travel and teleport in blue wisps or fire. Alice's knowledge in the days she was free allowed her to understand the functions and hierarchies of the universe and many rules of magic, which allowed her to accurately predict that Ember's murder would result in the Old Gods shutting off all magic.
Alice once also sought out to reverse the Niffin transformation and restore her brother Charlie to human but failed. Quentin would later attempt the same with Alice but succeed and return her to a human form using the missing element of Alice's Shade that he collected from the Underworld.
Niffins such as Friar Joseph who inhabit worlds devoid of magic are capable of dying.
Boxing a NiffinEditA special wooden box must be carved and be enchanted by a month-long ritual. The box has no lid as the Niffin becomes part of the wooden structure in itself, and therefore cannot be released. While boxing a Niffin, a Turkish incantation must be said 3 times. This incantation is "Seni Bağlıyorum" or "Seni Bağlamak", both mean "I bind you" in Turkish.
There have been incidences wherein a Niffin is able to work around a "boxing" and escape.
Restoring a NiffinEdit
It is possible to restore a Niffin back into a human, but it requires 3 essential things for the ritual to succeed:
- A power source, strong enough to fulfill the spell completely to its end.
- The Niffin's Shade, it's human soul. Many spells specifically failed due to a lack of a shade.
- A specially made warded metal cage to contain the Niffin.
The procedure starts with the Niffin's Shade being released inside the cage and subsequently locked inside. The Niffin is soon drawn into the cage, due to its connection with its Shade. The power source is put into use and is located at the four corners of the cage in a drawn seal. Upon the invocation of the spell, both the Shade and Niffin are forcibly combined, leaving a fully whole human in its place.
A restored Magician is equivalent to that of a newborn in terms of magical ability and cannot cast spells for the first few weeks. Due to the different physiology and capabilities experienced as a Niffin, the restored Magician will slowly lose all the advanced magical knowledge and comprehension of the universe that they obtained as a Niffin, though this does not affect their memory as a whole, as they retain the memories of their time in that form, however fleetingly it may be. When Alice Quinn described being human again, she stated that she 'understood everything' about the universe and that returning her to a human form caused all of her profound knowledge to fade like a dream. Though it takes time, a newly reverted Human can acclimatize to their form once again.