TWST AU LORE: Blot and OverBlotting
Information Organization
Things prefaced with Canon is from canon that still applies or AU which is info I’ve come up with. Once you get to “Dealing with an Active Overblot” everything is AU material and won’t be prefaced with the above.
As of the making of this post I’m a video game only and that’s the main source of my information in regard to cannon.
Click here for information on Magic (recommended to read this first)
Redesigns
Riddle | Leona | Azul | (to be updated)
General Information
Blot
Canon: Blot iss made up of strong toxins and stagnant magic, and appears to be caustic. Once expelled from the body, it condenses and crystallizes.
AU: Blot is an element created from the “disruption” or “altering” of base reality. It is highly volatile towards magic it was not a result of and has to be processed by the body to neutralize this characteristic or it will naturally burn away.
The production and management of Blot
Canon: The usage of magic produces blot, with proper rest and nutrition the blot naturally goes away. The accumulation of blot differs between people, and negative emotions can speed up its accumulation. However, it’s implied that the larger your magic pool is the longer blot remains in your system.
AU: Every species has an organ to handle their own blot, even the non-mages. In beastfolk, and humans, organs like the liver and kidneys have adapted to filter and expel blot (they are slightly different from real-world equivalents DNA wise too, it’s currently unknown if an otherworlder’s organs can manage blot). Due to the vast biological diversity in fae and mer, not all individuals’ or sub-species’ use their liver and kidneys to filter blot and have alternative methods or organs handle that.
In this world, everything has some magic in it’s system or structure, if the species as the ability to produce magic users it will pass on the genetics for this organ even if the individual lacks a mana pool large enough to cast magic. The mana pool, however, doesn’t have an organ to control/regulate as it is a non physical presence tied with the soul. It is thought that magical manifestation was too diverse to manifest evolution clearly on a physical level. Though some theorized that merfolk, beast folk, and fae are the result of magic’s physical manifestations- it’s very unpopular though, as it suggests that they are human in origin. It seemed that there was no need for physical adaptations to evolve for magic outside of the waste management. This process also makes the blot non-volatile to outside/neutral magic.
Mer and Fae are more vulnerable to Blot as they have a high volume of magic in their system and their biology relies on magic to function. Thus suffer more when Blot disrupts those processes. Those with larger mana flow also suffer more too. This does not apply to their own blot (as long as their mana core/reserves/pool has not run out, then they deteriorate faster than those who are reality-based and have smaller mana pools/cores).
Overblotting
Canon: Overblotting is state that’s the result of blot built up from not allowing recovery time and/or from straining use of one’s magic. In this state, blot consumes the user and creates a physical manifestation known as a Phantom. One must break the connection between the mage and their Phatom to stop the overblot. If this does not happen, it will drain the life from its host and will continue to exist afterword.
AU: An Overblot happens when the body can no longer handle the amount of blot that’s in their system, triggering a meltdown reaction of excessive blot production. This is almost always paired with several mental distress, as there has not been a recorded case of an overblot happening with a calm, stable mind. The high amount of toxins in the blot also disrupt brain pathways and regulation systems causing impaired thinking, rationalizing, and emotional disregulation. So even if an individual started out mentally stable, if there isn’t an emergency flush of the system, they will inevitably have a mental break.
During an overblot, the overblotter’s or host of the blot’s (“host” for short) will excrete excess blot through the skin and mucus membranes, as well as breathe out a gaseous form. Blot- not making up the Phantom- physical state can vary from person to person. It most commonly takes on gaseous and tar like forms in tandem. Like in Riddle’s case: the blot was hot and tar like; its gaseous form was also hot and formed rose petals in the air and when pooled on the ground would make shapes of rose bushes. The overblotter’s mouth and eyes will glow, a flame can also appear from the eye(s), as a result of the overuse of their mana core resulting in it “over heating.”
Since the mana core is an intangible/seperate from the body (but still connected like the soul) no harm is done to the physical body of the host. However, once the host’s mana pool run’s dry their life force to convert into mana will be used to keep the phantom and overblot going. Since this life force conversion creates new mana, the blot created by the old mana will react with the new blot and will rapidly rot and eat away at the host’s body from both the inside and outside. Once this starts, the mortality rate is 99%.
Being more vulnerable or more resistant to overbloting a second time depends on the individual and how they’ve handled their recovery both emotionally/mentally and physically.
Canon: Extended exposure to blot will make mages feel ill. It’s not currently confirmed or denied that touching blot can corrupt another mage.
AU: A mage who has similar traumas, negative feels, etc, to the OB that have a more mental state and/or a weak will cannot be corrupted by the blot. Otherwise the blot will have no influence in causing one to OB.
Phantoms
AU: A parasitic manifestation summoned/born from the overblotter’s negative emotions. The blot forms its own semi-coniciousness and will ruthlessly pursue a sole purpose that it twists and warps from the overblotter’s desires and beliefs. To break the connection, one must destroy the “head” of the manifestation, typically appearing as a glass or crystal structure where the head of its initiation form is. if not broken, the overblotter will inevitably die, and it will continue its purpose after host’s death.
Even in the case the phantom’s defeat, this does not guarantee the host’s survival. As it may already’ve drained too much of the host’s life force, or the host simply doesn’t have the will to live and chooses (subconsciously or not) to die with this the entity. If the Phantom isn’t taken out before the host dies, it becomes considerably stronger as a result of the life force it’s consumed.
It’s considered fully mature when it fully drains its host and kills them. Killing the host does not immediately kill it, but does make it easier and faster to kill. In the event of it fully maturing or premature host death, it will continue to survive, it isn’t a living being and acting more like radiation and decaying very slowly over time. It can only grow in power by consuming outside life and magical sources.
Magestones
Canon: Found and mined from certain caves, these magical gem/crystals/stones are used by mages to capture the byproduct that is blot created casting magic (click here for further information on blot). Magic performances is possible without a magestone, but will result in blot build up in the body instead. These more blot in a mage’s system, the harder normal spell casting is and takes a heavier toll.
AU: Those that are considered mages often spellcast more often and caste spells that result in more blot production than their body can handle/evovle to handle. Hence it’s nessacary for mage stones
S.T.Y.X
Canon: A secretive organization that dedicates itself to studying blot and Overblots; they have captured a number of Phantoms and use them as test subjects for their research.
AU(tho probably canon too):How to handle overblots around the world is based on the research S.T.Y.X has done.
Dealing with an Active OverBlot
Pre Phantom
Evacuate all unnecessary personal and call emergency services- specify it’s an Overblot.
It is THE MOST important thing to not stress or provoke the OB in this early stage. Try to deescalate, in case of failure evacuate to safety until professional overblot handlers arrive.
If one comes into contact with blot: Immediately evacuate the contaminated area, and seek medical treatment. If possible, remove blotted clothing and items from one’s person.
Two teams should be dispatched. Team one should deal with the overblotter and consists of: mental health crisis personal, blot-specialized: medical doctors, combat mages, and clean up crew. The second team should work with local authorities to treat any exposed to blot and crowd control.
Post Phantom
(With the goal of saving the host)
Defeat the phantom and end the fight as quickly as possible. Do NOT let it mature. The sooner the Phantom is killed, the higher the survival rate is.
When the phantom is formed, the only way to take it down is by destroying the head. Excessive damage to the body must be avoided. Damage to that area only results in the blot regenerating, which only puts strain on the host. Not all Phantoms seem to posses the intelligence or multitasking ability to not over strain their host in the case of excessive damage, and can end up killing their host from magic/life force drainage (magic and life are interconnected, if the mana pool is depleted before the host’s life force is consumed, the host will start using their life force to create mana. Not all Phantoms seem to have the instinct to avoid this scenario).
Instead, focus on restraining the main body’s movement or confusing/overwhelming the host and phantom. It is also necessary to avoid hurting the host, especially with spells that do not manifest physical matter, as the blot on their body is reactive to magic and can result in more damage than intended.
The host is no longer open to reason and cannot be talked down, mind heavily under the influence of the Phantom to achieve “their” goals. It is still recommended to talk to the OB to give reason’s to fight against the Phantom’s influence and to not succumb with it in the advent of its defeat, as survivors note that words do reach their subconscious. While risky, contacting a loved one may advised. There has been a correlation between OB’s surviving and the presence of loved one’s presence that tried to talk them down before or during the fight.
Host Death
(Premature) Nothing changes, except in the aftermath procedures.
(Mature) The Phantom’s power and threat level increases significantly. Its intelligence and awareness has the chance of evolving after the host’s death as well. Due to it being so difficult to kill, often procuring heavy loss, containment is often a better suited solution.
OverBlot Aftermath
Immediately evacuate the contaminated area, follow all instructions given by professionals. If the overblotter is a loved one, alive or dead, do not approach unless told otherwise.
Decontamination procedures vary depending on the blot’s physical form. Everything given and used on blotted victims should have been through the procedure of drain magic out of it. Often needing specialized cleaning products, that have been drained of magic, to effectively wash away the blot. Treatments to flush out blot from internal systems should be given to both victims and the overblotter. Treatment of the lungs and airway are often necessary as a result of burns, blockages/clogging or both.
Any initial medical treatment provided has to be non-magical in nature. Only once blot has been confirmed to be eliminated is magic permitted to use— exceptions deemed as needed.
Injuries as a result of blot often heal worse than normal, due to both physical and magical circuitry damage. This results in the area having more resistance to magical effects until the magical circuitry recovers unless a source of magic is powerful enough override the resistance. It depends on the individual if the magical circuitry will recover and how much. In cases where the patient has taken proper care of themselves, the circuitry has seen to be more efficient. It is similar to how bones can either regrow stronger or become weaker depending on the method of breakage and recovery. If magical circuitry is not given enough time to recover before getting damage again, it will damage its chances of/the quality of recovery.
Once the circuitry is recovered, scaring and other affects resulted from injury are far more receptive to outside magical help, or to the individual’s healing process depending on their nature. In humans and beast men, mixed, and some mer, by this point the time period for the healing process has closed and is scared, while in fae and mer (and mixed) their bodies can “recognize” if it can “re-heal” a past injury better now that it has the resources/ability to do so.
Those exposed for more than 10 minuets to excessive amounts of blot are not recommended to use excessive amounts of magic and to keep a careful watch of their use. This is due to the strain on their organ’s that process blot. The rest period depends on how long the exposure lasted after which, from a few days or a week or two. Also depending on the length of exposure, physical and mental check up(s) are highly recommended, the minimum at least one a month later. Along with following any recovery procedures for any injuries acquired.
The OverBlotter is effected the most (unless another dies), the rest period is at least a month with no magic use for the first few days after the incident. There is usually damage to the organs responsible for blot management, the worst case scenario needing outside support until recovery or a transplant. Like with magical circuitry, how well the organs recover depends and varies to the individual (though they don’t get stronger/improve).
However, recovery to the point of full function pre-overblot is uncommon; with those who only OverBlotted for a short time (30 minutes to 2.5 hours) seeing an average range of 95-85% recovery, and for a long time (3 to 7 hours) seeing an average range of 80-68% recovery, and with a long time (8 to 24 hours) seeing an average range of 65-45% recovery. This is not including the instances of Fae and Mer that can achieve a “second recovery” period once their magical circuitry fully recovers.
Depending on the state of the OB, professional observation is recommended for at least one night. Check ups a week and the month after release are the minimum.
Therapy and counseling is mandatory, and will continue until cleared by the professional or else they will not be legally allowed to use magic. Restriction of magic use under treatment is tailored to the individual; this restriction is overseen and enforced via the teachers in coordination of Magical health and safety (and secretly Styx) if the individual is a minor attending an approved magical institution, otherwise agents from the Magical health and safety of the individual’s country will complete over see and enforce this.
The house-warden’s an exception to this given Crowely’s interference by keeping it all in house until book 6. Because Overblotting is so uncommon, the aftermath of what happens is widely known to the public. As well as depictions of it in media are seen as taboo, incorrect, or heavily scrutinized if done wrong as it’s akin to depicting a (often very violent) mental breakdown or suicide attempt. So those that know an overblot happened at NRC are not aware that things aren’t being handled right.
The mage’s mana pool is usually unchanged; there are instances of their mana pool increasing but as a result but their ability to control/regulate their magic decreasing, this is usually fixed with practice.
The Otherworlder
During an OverBlot
Due to lacking any magic and the ability to absorb it, blot doesn’t react the same way to Cynthia as it does to everything else. Aside from some its toxic nature, it’s not exacerbated by its volatile reaction to outside magic, plus with their innate magic resistance results in contact only causing mild skin irritation. They will still experience difficultly breathing if the blot is dense enough. As well as still being affected by all physical properties the blot takes on; an example of which is the gaseous form of Riddle’s blot acted like smoke from a fire, and they experience injury consistent with mild smoke inhalation as a result.
They also are less noticed by the Phantom, as while it shares senses with the host, it mainly relies on its ability to sense magic to navigate spaces and what to prioritize focus on. So as long as Cynthia doesn’t catch the host’s attention, they can go by practically unnoticed by both.
During a fight, if they are not directly instructing grim on what to do, they often take a back seat and observe or play look out/assistant. They are able to watch the backs of others and call out incoming attacks they missed in a clear manner. As well as formulate plans of attack on the fly. After realizing blot doesn’t react as violently to them, they instinctively go out of their way to tank a hit blot if it looks like it will hit someone else they are close by to.
Still, they mainly stay in the back, as they are very aware of their bad physical health and stamina, so they don’t want to get in the way. Their reaction to extreme distress is to emotionally shut down and think in pure terms of logic and reasoning while their physical body still goes through the motions of an adrenaline rush. In the worst case scenario they will be so overwhelmed that they will simply shut down completely and pass out (can’t be in distress if you’re not consciousness, that’s a problem for future Cynthia!!).
It's unknow why a physic link is created between them and the overblotter, nor why it seems to activates when the Phantom is defeated. The theory is that once they ingested the blot, which still holds a connection to the overblotter, it interacts with Cynthia's brain/neverous system/soul and links the two together; since Cynthia has no magic of their own to disrupt the conection or reject the foreign magic. Or the magic get’s confused that it’s in a living body with no mana system and assumes Cynthia is the overblotter as default as that’s where it’s originated from, creating the link and Cynth’s body has no way of rejecting said connection.
During this link, Cyn’s psyche/consciousness is thrown into a manifestation of the overblotter’s mind. The two appearing in the overblotter’s memories, (those related to the trigger of the overblot). In order to wake up, one must have a stable (enough) mind and the will to live, and imagine/create an exit (this can appear however the person wants as long as the intention is to wake up). For the overblotter specifically, they must accept what happened and want to continue living. Remnants of the phantom will try and break the host’s mind and/or convince them to give up and join it in death.
Cynthia is able to ensure all the overblotters survive by reaching out with reason and compassion, and/or simply being there as a distraction from the horrid thoughts. By really listening and showing honest compassion, and by baring ugly truths about themself and of their own darkest moments, they are able to show the overblotters that there is hope of things getting better like it has for them. That this isn’t the end, it won’t be easy and it’s not a straight slope up, but it does get better.
They don’t know this, but Cynthia can leave the mindscape on their own anytime. They aren’t sure if they need to snap the overblotter out of the spiral to leave, but they refuse to test it out of fear that if they can they won’t be able to go back and help.
(Op note: I want to clarify that Cynthia is not a savior or a saint/put on a pedestal by anyone. I just want to illustrate how vital it is to have support from someone/others when going through a mental crisis and dealing with mental illness or trauma in the long run. Cynthia cannot help the overblotters alone, they need professional help, but Cyn is the stepping stone to destigmatize and encourage going down that path of support.)
Post OverBlot
So far, Cynthia Keir has not shown signs of jeopardized health as a result of repeated blot exposure. The only symptom that can be 100% confidentally tied to the blot are mild skin irritation resulting in rashes that usually calm down after a day and are gone by the next (save for the areas they scratch at). A mild fever often happens, but it’s unknown if it’s a stress response or from their body reacting to blot.
Due to their chronic health issues that existed prior, it’s unclear if it’s the blot adding on or exacerbating systems of depression, chronic fatigue, chronic pain, POTS and IST; or if the stressful events are the sole cause for symptom flare ups. As well as not receiving treatment or support being the only factor for their worsening mental and physical state over time. When they do finally get some support, not long after book 2, it still takes time for the right medications to be prescribed, and even then other factors make it too muddy for a scientifically valid conclusion.
Testing of if the blot has stayed or left Cyn’s system does not happen until Book 6. It is confirmed that the blot has not left/that they still have remnants of blot in their system, even if they’ve received the flushing treatments. It’s suspected that the minuscule amounts of blot that don’t get flushed away built up over the course of the 6 overblots, the most anyone has been exposed to without proper equipment (soon to be 7 yippee!!). Or it somehow was stored in the body’s fat deposits, where the flush doesn’t access (can you tell I’m undecided haha). Though there is not a significant amount to cause the brain dysfunction mentioned previously, the long term overall consequences for blot in their body is unknown.
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That’s the end ^^ if you want to use any of this for your own stories/characters just give me credit and/or tag me cuz I would be over the moon to see I inspired someone :D!! Thanks for reading











