Witches have the ability to siphon Mana from other individuals to add power to a spell. They accomplish this through specially designed runes, which are tattooed to an individual. This rune links the person to the witch, who can then draw Mana out through the metaphysical link. This method is not without its dangers however. Drawing out too much power can harm or even kill the subject. Therefore, safety standards have required that witches limit their siphoning to 40% of the person's Mana supply or less.

Evil witches naturally wouldn't care about safety, and would gladly sacrifice a victim for power. For more scrupulous witches however, this stipulation naturally blocks witches from accessing the most powerful spells, as they normally require more power than witches usually have. Research has developed a possible workaround. By placing runes on multiple sources, a witch can draw Mana from several individuals at a time. This can allow them to bypass this rule without potentially killing someone by using more than one person at a time, drawing up to 40% from each.

I would like to limit access to the most powerful spells to dark witches. Therefore, I need for this method of siphoning power from multiple sources to not be a viable alternative to the normal method. How can I prevent "good" witches from gaming the system ?

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    $\begingroup$ The workaround works no matter if the witches are evil or lawful. Under such circumstances, the evil witches can do the same and tap multiple donors, but they don't limit themselves. So, the evil ones are still in advantage, right? $\endgroup$ May 5 '20 at 6:14
  • $\begingroup$ Once the magical link is established between the witch and individual, it is too late; the individual is at the mercy of a with. Introduce methods of neutralizing spells and protections against magical attack. $\endgroup$
    – Marino
    May 5 '20 at 9:31
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    $\begingroup$ Make it not possible to draw mana from multiple people at once? $\endgroup$
    – Issel
    May 5 '20 at 15:55
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    $\begingroup$ What about the backlash upon the witch for drawing too much power? If a witch drew just 40% from 5 people that is a 900% power increase. Unless your witches can control that much, there must be some danger to the witches themselves for using that much magic at once. $\endgroup$
    – Traveler
    May 5 '20 at 21:58
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    $\begingroup$ You are dealing with energy, so you can use real world constraint on energy. You have distance issue (far = weak), Convertion issue (high quality = 80%, poor quality = 20%), Infrastructure (You need a tower + rune to emit), Energy is transmited even if the cast is cancel. You cannot store more energy that your own limit ( people with no gift dont have a bigger manapool they just have way to recover, cast that require a big mana pool are impossible). $\endgroup$ May 6 '20 at 9:35

31 Answers 31


Power is good. More power is great. Even more power is greater. That's why we want more power, more power more powe


Introduce systemic bounds on power retention and/or power consumption.

There is some sort of imposed, physiological limit that a witch's body can take into at once or at the same time, with catastrophic consequences if ignored.

The primary benefit of this solution is the intuition - that's just how physics works. Heat up a water boiler, you get a nice stream of warm water. Overheat a water boiler, you get a steam explosion, which is not nice for anyone wanting to keep their skin intact.

The auxiliary benefit here is the observation that the leftover energy lingers on in the area. Your pick of deleterious consequences includes:

Regardless of what you chose, everyone now has a considerable amount of motivation to prevent "bad" witches to overload on their magic potential. Living next to a magical anomaly may sound fun, but trying to harvest wheat that randomly transforms into fairies gets old really quickly.


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