Mana Deficiency Condition in Starstruck | World Anvil

Mana Deficiency

Magic is dying, and its taking us with it.
— Važo Nusaskar, teacher at Yiselxà Academia
Common in all the races, Mana Deficiency is one of the main causes of the Starfall's destruction. While most point at the hordes of monsters as the main source of chaos, the true source was far more insidious.
With the fall, came a drop all over the continent in ambient magic. Only the Wastelands had true ambient magic, and even then, in poisonous levels.
This left the continent defenseless, magic-less, in the face of endless hoards of monsters.


Mana Deficiency is caused by lack of magic in a person's body. The exact limits of what counts as dangerous change for each race, but the result is the same.


Do you have Mana Deficiency? Check these in three easy steps:
  • Are you always tired?
  • Do you feel any aches and pains you can't place?
  • Have you casted your standardized light spell recently? Was the light off color or flickering? Did casting take longer than it should have?
If the answer is yes to any of these, then you should get magic supplements immediately before its too late!
— Flyer on the streets of Ruàmejiw
The beginnings of Mana Deficiency are innocuous. The afflicted are always tired from their body trying to refill mana from food stores that can't keep up. People were meant to live in areas with a certain level of ambient magic, food refilling mana stores was more of a biological backup plan, than a realistic task. The aches and pains have unknown cause, but researcher believe its from mana channels straining under the lack.
The last early symptom manifests itself in casting magic. With not enough magic to go around, the magic is unstable at best. A spell that uses the bare minimum of mana was crafted in 189 AD to test for these instabilities.


The best, and only, solution is get some sort of magic in the afflicted party. Not too much, or the sudden rush of magic will crash the person's system, but a small cup of tea infused with magic is the traditional treatment. The rarity of magic infused food is generally rarer in southern coasts and more common in the north. Either way, the cost is rising as the years drag on. Yiselxà Academia is trying to engineer a cheaper remedy at mixed success.


If caught early and the patient's mana brought up to normal levels, things will normalize. However, if things progress, the situation worsens quickly. The body begins to cannibalize itself to produce more mana, but after about a week of this, the body runs out of resources that can be used for mana production. Soon after, they go catatonic with no hope of waking up ever again. While how long they survive at that point can vary, generally they die soon after.
Affected Species
Species | Dec 6, 2018

Blessed by the Stars

Species | Jul 11, 2019

Blessed by the Sun

Species | Dec 27, 2018

Blessed by the Moon

Ambient Magic
Physical / Metaphysical Law | Feb 26, 2020

Natural Magic


  • Mana: Magic processed by the body for use. Outside magic can technically be used by a caster as well, but the art was lost.
  • Ambient Magic: Magic floating freely in the world. People absorb some of this naturally to refill stores, as do many plants and animals.


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5 Jul, 2018 18:01

Huh, cool, I like the tie-in with ambient magic and mana as something more than just a stat. How does the disease spread?

5 Jul, 2018 18:04

Its a condition more than a disease. Its like having low iron or some other nutrient, if a bit more dangerous. Generally, you get it from not taking care of yourself, using too much magic, or as a side effect from other diseases.

5 Jul, 2018 18:06

Ah, that makes sense! Thanks for the quick reply

5 Jul, 2018 18:06

How frequently does this occur and kill people?

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5 Jul, 2018 18:11

Depends on where you are and how bad conditions are. In the early years of the Starfall it was one of the highest causes of death. Today... its rarer, but 1 in a thousand ordinary people might come down with it. Most of the time its cured early on though. In magic reliant industries, its a lot easier to die to it though. Given how much magic they use, if you don't know your limits well, its easy to blast past the early phases. In general, I guess its more common than people would like, and a lot more common than it was one or two thousand years ago.

5 Jul, 2018 20:07

I love the the definitions you add and the sort of... messed up problem of this populace slowly dieing. I'm curious if this sort of populace is doomed to fail? I'll have to read on!

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The Starred articles are my favorites!
5 Jul, 2018 20:10

Its not quite doomed, but the solutions aren't easy either. First, someone would have to figure out the solution, which is difficult alone. Then, they'd need to execute, which admittedly, I probably haven't made easy.
And thank you!

5 Jul, 2018 20:43

Wow, I never thought of something as simple as running out of mana as an affliction. That's pretty darn cool. I wonder though, how does such an illness effect children versus adults? Who can get afflicted more quickly, and who would suffer from it the most?

5 Jul, 2018 21:13

Even simple things can be deadly in the right/wrong circumstances. But thanks!
And I think for the most part, children would be unaffected. I didn't mention it anywhere, but the ability to use mana doesn't fully develop until puberty. Given that they can't use magic, its harder to 'run out'. It does however mean that children are weaker to Mana Poisoning, which I'll be doing an article on later.