History Main / EquivalentExchange

21st Aug '16 9:47:44 PM CleverPun
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** There are also some cards that are balanced this way: they give you a benefit or harm your opponent, but also do the same thing to every other player. One example is ''Braids, Conjurer Adept'': she lets you play a card for free at the start of every one of your turns, but your opponent(s) get to do the same. There's plenty of cards that follow a similar pattern.
16th Aug '16 1:59:31 AM PaulA
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* ''Literature/VorkosiganSaga: A Civil Campaign''; Cordelia Naismith-Vorkosigan points out that her home planet of Beta Colony is extremely sexually liberal, yes, but at the cost of being ''reproductively'' conservative. All women, by law, have a contraceptive implant, and people wanting to become parents are subject to a battery of tests before being licensed. Very few families are allowed more than two kids. This is not something the writer just made up, mind you; both the sexual liberality and the implants had been mentioned throughout the series, but it is the first time the connection was explicitly explained.

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* ''Literature/VorkosiganSaga: A Civil Campaign''; ''Literature/ACivilCampaign'': Cordelia Naismith-Vorkosigan points out that her home planet of Beta Colony is extremely sexually liberal, yes, but at the cost of being ''reproductively'' conservative. All women, by law, have a contraceptive implant, and people wanting to become parents are subject to a battery of tests before being licensed. Very few families are allowed more than two kids. This is not something the writer just made up, mind you; both the sexual liberality and the implants had been mentioned throughout the series, but it is the first time the connection was explicitly explained.
13th Aug '16 12:49:36 PM Morgenthaler
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* In the early ''AnitaBlake'' stories, one must kill a living thing to create undead. Anita routinely uses goats for that purpose. Of course, most magic is swallowed up by DeusSexMachina as the series moves forward. (She has kept the goats out of that part.)

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* In the early ''AnitaBlake'' ''Literature/AnitaBlake'' stories, one must kill a living thing to create undead. Anita routinely uses goats for that purpose. Of course, most magic is swallowed up by DeusSexMachina as the series moves forward. (She has kept the goats out of that part.)
25th Jul '16 12:56:57 AM PaulA
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* The "death magic" in Creator/LoisMcMasterBujold's Literature/{{Chalion}} series is like this: it's a way to murder someone at a distance, but as part of the spell's workings, the person casting the spell will die, too. In addition to this little drawback, it's [[spoiler:believed to be]] very difficult, and requires animal sacrifice as well. Plus, the God of Executioners has to be invoked and [[spoiler:he only lets the magic work when the victim ''deserves'' to die.]]

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* The "death magic" in Creator/LoisMcMasterBujold's Literature/{{Chalion}} series ''Literature/TheCurseOfChalion'' is like this: it's a way to murder someone at a distance, but as part of the spell's workings, the person casting the spell will die, too. In addition to this little drawback, it's [[spoiler:believed to be]] very difficult, and requires animal sacrifice as well. Plus, the God of Executioners has to be invoked and [[spoiler:he only lets the magic work when the victim ''deserves'' to die.]]die]].
15th Jul '16 2:08:28 PM Enkida
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* In ''Fanfic/MementoVivere'', a ''VideoGame/FinalFantasyX'' fanfiction, Rikkuís dilemma is deciding whether to pursue a romance with Auron at the risk of [[spoiler: bringing Sin back.]]

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* In ''Fanfic/MementoVivere'', a ''VideoGame/FinalFantasyX'' VideoGame/FinalFantasyX fanfiction, Rikkuís dilemma is deciding whether to pursue a romance with Auron at the risk of [[spoiler: bringing Sin back.]]
15th Jul '16 12:59:44 PM Enkida
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* In ''Fanfic/MementoVivere'', a ''VideoGame/FinalFantasyX'' fanfiction, Rikkuís dilemma is deciding whether to pursue a romance with Auron at the risk of [[spoiler: bringing Sin back.]]
30th Jun '16 3:33:03 PM StevieWillShowYou
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* ''Anime/WitchHunterRobin'' had a doctor whose special witch power allowed him to transfer LifeEnergy from one person to another. He used this to heal patients -- and took the necessary energy for his power from mob bosses. [[spoiler:He ultimately decides to save his human partner by sacrificing his own life.]] Considering that the witch hunters kill most witches they go up against, with those captured alive [[spoiler:taken for experimentation]], he definitely made the right decision. Since the STN-J hunts all Witches regardless of whether they can morally justify the use of their powers or not, Robin ends up learning about the holes in her philosophy by going on a less defensible (and fairly nasty) witch hunt.

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* ''Anime/WitchHunterRobin'' had a doctor whose special witch power allowed him to transfer LifeEnergy from one person to another. He another; he used this his power to heal patients -- and took the necessary energy for his power from mob bosses. [[spoiler:He ultimately decides to save his human partner by sacrificing his own life.]] Considering that Since the witch hunters kill most of the witches they go up against, with against--and those captured alive [[spoiler:taken [[spoiler:end up taken into custody for experimentation]], he definitely experimentation]]--he made the right decision. Since (And the STN-J hunts all Witches witches regardless of whether they the witches can morally justify the use of their powers or not, Robin ends up learning about the powers, so this less-defensible hunt pokes some critical holes in her philosophy by going on a less defensible (and fairly nasty) witch hunt.Robin's philosophies.)
2nd Jun '16 1:11:21 PM Morgenthaler
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* In {{Euripides}}'s ''Theatre/{{Alcestis}}'', Admetus' wife, Alcestis, offered to [[BalancingDeathsBooks die in his place]]. And then [[DeusExMachina Heracles showed up]] and ''[[DidYouJustPunchOutCthulhu beat up]]'' ''[[TheGrimReaper Death]]'' to save her so that there could be a happy ending. Honestly, didn't these Greeks read Orpheus?

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* In {{Euripides}}'s Creator/{{Euripides}}'s ''Theatre/{{Alcestis}}'', Admetus' wife, Alcestis, offered to [[BalancingDeathsBooks die in his place]]. And then [[DeusExMachina Heracles showed up]] and ''[[DidYouJustPunchOutCthulhu beat up]]'' ''[[TheGrimReaper Death]]'' to save her so that there could be a happy ending. Honestly, didn't these Greeks read Orpheus?
28th May '16 7:32:40 PM Discar
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** Alphonse makes a crucial logical conclusion about the principle near the very end of the series. If A equals the cost of B, then the reverse should hold true: [[NowDoItAgainBackwards you can exchange B back for A]]. [[spoiler:Once he figures it out, Al gives his soul ''back'' to Truth so Ed can have his right arm again and defeat Father once and for all. Ed does not take this development well.]]
*** After it happens, however, [[spoiler:Edward is able to top Alphonse by offering up the very truth of alchemy he received when they tried to bring their mother back as payment for Al's return]]. It's not quite an even equation, however [[spoiler:as Ed ends up loosing not only his circle-free alchemy but his entire ability to perform alchemy, though it's later revealed he gave up his alchemy for his brother's soul, either way it's such a clever exchange that even Truth itself is floored]].

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** Alphonse makes a crucial logical conclusion about the principle near the very end of the series. If A equals the cost of B, then the reverse should hold true: [[NowDoItAgainBackwards you can exchange B back for A]]. [[spoiler:Once he figures it out, Al gives his soul ''back'' to Truth so Ed can have his right arm again and defeat Father once and for all. Ed does not take this development well.]]
***
]] After it happens, however, [[spoiler:Edward is able to top Alphonse by offering up the very truth of alchemy he received when they tried to bring their mother back as payment for Al's return]]. It's not quite an even equation, however [[spoiler:as Ed ends up loosing not only his circle-free alchemy but his entire ability to perform alchemy, though it's later revealed he gave up his alchemy for his brother's soul, either way it's such a clever exchange that even Truth itself is floored]].



* In ''LightNovel/ACertainMagicalIndex'', once one becomes an [[PsychicPowers esper]], they can never use magic, and vice-versa, without suffering extreme damage to their bodies.

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* In ''LightNovel/ACertainMagicalIndex'', once ''LightNovel/ACertainMagicalIndex'':
** Once
one becomes an [[PsychicPowers esper]], they can never use magic, and vice-versa, without suffering extreme damage to their bodies.



* ''VisualNovel/FateStayNight'' (and its [[Franchise/{{Nasuverse}} multiverse]]) contains this -- energy must be taken from somewhere before it runs through the [[FunctionalMagic Magic Circuit]], though in most cases, Prana is either generated by the magus ([[LifeEnergy Od]]) or taken from the environment ({{Mana}}). Rin can launch A-rank attacks in seconds because she taps directly into her jewels (where she has been saving [[{{Mana}} Prana]] for ten years) instead of gathering it slowly for a minute or three.

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* ''VisualNovel/FateStayNight'' (and ''VisualNovel/FateStayNight'':
** As with the rest of
its [[Franchise/{{Nasuverse}} multiverse]]) multiverse]], the series contains this -- energy must be taken from somewhere before it runs through the [[FunctionalMagic Magic Circuit]], though in most cases, Prana is either generated by the magus ([[LifeEnergy Od]]) or taken from the environment ({{Mana}}). Rin can launch A-rank attacks in seconds because she taps directly into her jewels (where she has been saving [[{{Mana}} Prana]] for ten years) instead of gathering it slowly for a minute or three.



** One exception is Rinís Jewel Sword Zelretch, which lets her use strong attacks indefinitely by absorbing mana from alternate realities. The sword is explicitly made with "True Magic", which breaks the usual rules of Equivalent Exchange, and which only about five people in the world are capable of using.

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** One exception is Rinís Rin's Jewel Sword Zelretch, which lets her use strong attacks indefinitely by absorbing mana from alternate realities. The sword is explicitly made with "True Magic", which breaks the usual rules of Equivalent Exchange, and which only about five people in the world are capable of using.



* ''Manga/HunterXHunter'' has Nen abilities. It's a special ability invented by a user by using Nen, and it can range from simple super strength to shrinking cloths to memory reading to [[ImprobableWeaponUser vacuum cleaners and books and bank accounts]]. Each of these abilities have unique powers that the user make up in his mind during conception. The more powerful you are, the more powerful ability you can create. The thing is, the more powerful the ability is, the more restrictions the user must needs impose on it as well. Examples are:

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* ''Manga/HunterXHunter'' has ''Manga/HunterXHunter'':
**
Nen abilities. It's a special ability invented by a user by using Nen, and it can range from simple super strength to shrinking cloths to memory reading to [[ImprobableWeaponUser vacuum cleaners and books and bank accounts]]. Each of these abilities have unique powers that the user make up in his mind during conception. The more powerful you are, the more powerful ability you can create. The thing is, the more powerful the ability is, the more restrictions the user must needs impose on it as well. Examples are:



* The second arc of ''Manga/{{Naruto}}'' started off with Gaara dying, but he was an immensely popular and critical character so he needed to be revived. Enter Chiyo, who has a ninjutsu capable of reviving the dead. To avoid this being used to prevent every death in-series, the jutsu was equivalent exchange: the user sacrifices their own life to resurrect another.

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* ''Manga/{{Naruto}}'':
**
The second arc of ''Manga/{{Naruto}}'' started off with Gaara dying, but he was an immensely popular and critical character so he needed to be revived. Enter Chiyo, who has a ninjutsu capable of reviving the dead. To avoid this being used to prevent every death in-series, the jutsu was equivalent exchange: the user sacrifices their own life to resurrect another.



* ''Anime/PuellaMagiMadokaMagica''

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* ''Anime/PuellaMagiMadokaMagica''''Anime/PuellaMagiMadokaMagica'':



* In the multiverse of ''Manga/TsubasaReservoirChronicle'' and ''Manga/{{xxxHOLiC}}'', the price for wishes granted by Yuuko works this way. Some characters are much more wary of the possible implications of this than others. In particular, Kurogane and Doumeki will only ask for Yuuko's help if it is flat-out impossible for them to solve the problem under their own power. This is prudent, as false-hearted or impulsive wishes usually result in nasty karmic payback. Yuuko also has rules about not dealing in wishes of value equal to a human life, as that would implicate the wish-granter in murder.

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* In the The multiverse of ''Manga/TsubasaReservoirChronicle'' and ''Manga/{{xxxHOLiC}}'', the ''Manga/{{xxxHOLiC}}'':
** The
price for wishes granted by Yuuko works this way. Some characters are much more wary of the possible implications of this than others. In particular, Kurogane and Doumeki will only ask for Yuuko's help if it is flat-out impossible for them to solve the problem under their own power. This is prudent, as false-hearted or impulsive wishes usually result in nasty karmic payback. Yuuko also has rules about not dealing in wishes of value equal to a human life, as that would implicate the wish-granter in murder.



* Christopher Paolini's ''Literature/InheritanceCycle'': The ''[[FunctionalMagic entire magic system]]'' of the series is wrapped up in this. Doing something with magic takes the same amount of energy as doing it without magic would have done. And if you try casting a spell that takes up more energy than you have, you die.
** This is what he says, but at one point, Eragon breaks the calves of dozens (maybe hundreds) of soldiers and doesn't die. And how much energy does it take to make a blue fireball without magic?
*** The color of the fireball doesn't indicate how hot it is, it just means his dragon is blue. Brom says it out right in the first book, for dragon riders their magic will be the color of their dragon. So it would take no more energy then a fireball that would "naturally" burn red.
** And certain spells are just flat-out impossible, presumably because they take far too much energy, or simply cannot be done. For example: Eragon is warned to never try to bring people back from the dead; beyond death, there's just something that magic has no effect on; an attempt would drain the mage of all his life in one go and accomplish nothing. Trying to see the future or the past is a bad idea as well.
*** It's actually explained in the books that if you're trying to see the future, it's a lot like scrying, in that you need to know exactly what's going to happen, down to the last detail. But if you already know what's going to happen, then scrying the future is functionally pointless.

to:

* Christopher Paolini's ''Literature/InheritanceCycle'': ''Literature/InheritanceCycle'':
**
The ''[[FunctionalMagic entire magic system]]'' of the series is wrapped up in this. Doing something with magic takes the same amount of energy as doing it without magic would have done. And if you try casting a spell that takes up more energy than you have, you die.
** This is what he says, but at one point, Eragon breaks the calves of dozens (maybe hundreds) of soldiers and doesn't die. And how much energy does it take to make a blue fireball without magic?
*** The color of the fireball doesn't indicate how hot it is, it just means his dragon is blue. Brom says it out right in the first book, for dragon riders their magic will be the color of their dragon. So it would take no more energy then a fireball that would "naturally" burn red.
die.
** And certain spells are just flat-out impossible, presumably because they take far too much energy, or simply cannot be done. For example: Eragon is warned to never try to bring people back from the dead; beyond death, there's just something that magic has no effect on; an attempt would drain the mage of all his life in one go and accomplish nothing. Trying to see the future or the past is a bad idea as well.
***
well. It's actually explained in the books that if you're trying to see the future, it's a lot like scrying, in that you need to know exactly what's going to happen, down to the last detail. But if you already know what's going to happen, then scrying the future is functionally pointless.



* This also comes up a lot with magic in the ''Literature/{{Discworld}}'' books, where it is referred to as the Law of Conservation of Reality. For example, to teleport someone from one side of the disc to another, you may need to have an equivalent weight to teleport back to where they came from. This is mainly to deal with conservation of momentum; because the Disc rotates, different points on its surface move at different velocities relative to the Hub. Teleporting without such a counterweight means that if you move very far, your velocity relative to your immediate surroundings tends to kill you. But you can do it!

to:

* ''Literature/{{Discworld}}'':
**
This also comes up a lot with magic in the ''Literature/{{Discworld}}'' books, where it is referred to as the Law of Conservation of Reality. For example, to teleport someone from one side of the disc to another, you may need to have an equivalent weight to teleport back to where they came from. This is mainly to deal with conservation of momentum; because the Disc rotates, different points on its surface move at different velocities relative to the Hub. Teleporting without such a counterweight means that if you move very far, your velocity relative to your immediate surroundings tends to kill you. But you can do it!



*** Another anecdote describes how using magic to levitate a book from a high shelf to lay it down in front of you will fatigue you as much as actually climbing a ladder to take the book directly.

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*** ** Another anecdote describes how using magic to levitate a book from a high shelf to lay it down in front of you will fatigue you as much as actually climbing a ladder to take the book directly.



-->''Esk: I don't think magic works like that. You can't just make things happen, there's sort of- like a seesaw thing, if you push one end up, the other goes down.''
-->''Gulta: I can't see Granny on a seesaw.''

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-->''Esk: --->'''Esk:''' I don't think magic works like that. You can't just make things happen, there's sort of- like a seesaw thing, if you push one end up, the other goes down.''
-->''Gulta:
\\
'''Gulta:'''
I can't see Granny on a seesaw.''



* Blood-magic in George Martin's ''Literature/ASongOfIceAndFire'' works this way;

to:

* Blood-magic in George Martin's ''Literature/ASongOfIceAndFire'' works this way;way:



* ''Literature/TheSagaOfRecluce'' series by L. E. Modesitt Jr. is set in a world of Chaos and Order Magic, both of which must be carefully balanced--at times, overuse of either, or just too much Order or Chaos concentrated in one area, has shifted the entire planet's weather patterns, caused volcanic eruptions, and other disasters.
** Despite that the balance is well-known in-universe, it didn't stop people from trying to cheat. Recluce itself, for example, was protected by a navy of Order-infused ships...and every time they replaced one, it was with a larger, more powerful ship that required more Order.

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* ''Literature/TheSagaOfRecluce'' series by L. E. Modesitt Jr. is set in a world of Chaos and Order Magic, both of which must be carefully balanced--at times, overuse of either, or just too much Order or Chaos concentrated in one area, has shifted the entire planet's weather patterns, caused volcanic eruptions, and other disasters.
**
disasters. Despite that the balance is well-known in-universe, it didn't stop people from trying to cheat. Recluce itself, for example, was protected by a navy of Order-infused ships...and every time they replaced one, it was with a larger, more powerful ship that required more Order.



* In the ''Literature/ColdFireTrilogy'', magical energy is released by sacrifice. The amount of energy gained is directly proportional to how much the sacrificed object was worth to the sorcerer. This is one of the facts used to show the {{Magnificent Bastard}}ness of Gerald Tarrent, who sacrificed his entire family to gain immortality. The spell wouldn't have worked if he hadn't loved his wife and children very, very much - and he killed them ''anyway''.
** It's later explained that the sacrifice which made him immortal wasn't actually his wife and children. It was ''his own humanity'', which he lost through the expedient of killing his wife and children.
*** And if he ever tried to act like a compassionate human being again by engaging in an act of life or Healing, his immortality would be forfeit.

to:

* In the ''Literature/ColdFireTrilogy'', magical ''Literature/ColdFireTrilogy'':
** Magical
energy is released by sacrifice. The amount of energy gained is directly proportional to how much the sacrificed object was worth to the sorcerer. This is one of the facts used to show the {{Magnificent Bastard}}ness of Gerald Tarrent, who sacrificed his entire family to gain immortality. The spell wouldn't have worked if he hadn't loved his wife and children very, very much - and he killed them ''anyway''.
** It's later explained that the sacrifice which made him immortal wasn't actually his wife and children. It was ''his own humanity'', which he lost through the expedient of killing his wife and children.
***
children. And if he ever tried to act like a compassionate human being again by engaging in an act of life or Healing, his immortality would be forfeit.



** Surgebinding produces various effects (from flight to trasmutation to healing), consuming the stormlight infused in gems in exchange

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** Surgebinding produces various effects (from flight to trasmutation to healing), consuming the stormlight infused in gems in exchangeexchange.



* Stephen Donaldson's second ''Literature/TheChroniclesOfThomasCovenant'' has the mere mortals of the land required to shed blood (both their own and the blood of others is used) in order to manipulate the Sunbane.
** The first chronicles has Mhoram realizing [[spoiler:the key to power is despair, which will lead to the destruction of the Land]].

to:

* Stephen Donaldson's second ''Literature/TheChroniclesOfThomasCovenant'' has the mere mortals of the land required to shed blood (both their own and the blood of others is used) in order to manipulate the Sunbane.
**
Sunbane. The first chronicles chronicle has Mhoram realizing [[spoiler:the key to power is despair, which will lead to the destruction of the Land]].



* The Defilers in the ''TabletopGame/DarkSun'' setting for ''TabletopGame/DungeonsAndDragons''. Both Defilers and Preservers need to drain life forces in order to power arcane magic, but defilers drain it away without worrying about the consequences, while Preservers are careful not to drain enough to kill the plants and animals nearby that are contributing.
** Considering that Athas is a gigantic desert world, it's not hard to deduce the popularity of defiler magic.

to:

* The Defilers in the ''TabletopGame/DarkSun'' setting for ''TabletopGame/DungeonsAndDragons''. Both Defilers and Preservers need to drain life forces in order to power arcane magic, but defilers drain it away without worrying about the consequences, while Preservers are careful not to drain enough to kill the plants and animals nearby that are contributing.
**
contributing. Considering that Athas is a gigantic desert world, it's not hard to deduce the popularity of defiler magic.



* Most magick in ''TabletopGame/UnknownArmies'' works this way. The "value" of certain actions varies based on what kind of adept you are. Typically an adept gets a "minor charge" for some kind of ritual that's easy enough to be performed every day or so, a "significant charge" for doing something very difficult and painful, and a "major charge" for doing something nigh-impossible. And even the magick that seems to be free usually isn't. In TabletopGame/UnknownArmies, ain't nothin' come for free.
** There's even an in-game term for the concept in UA: The Law of Transaction.

to:

* Most magick in ''TabletopGame/UnknownArmies'' works this way. The "value" of certain actions varies based on what kind of adept you are. Typically an adept gets a "minor charge" for some kind of ritual that's easy enough to be performed every day or so, a "significant charge" for doing something very difficult and painful, and a "major charge" for doing something nigh-impossible. And even the magick that seems to be free usually isn't. In TabletopGame/UnknownArmies, ain't nothin' come for free.
**
free. There's even an in-game term for the concept in UA: The Law of Transaction.



* Present in the TCG ''TabletopGame/MagicTheGathering'' to an extent. Every spell has a cost. Most are simply {{Mana}} drawn from the land, but others require a life (yours or your creatures), the land itself, or even time (skipping a turn). Several cards will actually kill you if the cost is too much for you to afford.
** Perhaps the most famous example of this is Necropotence. You don't draw normally near the beginning of your turn; instead, you may pay X life to draw X cards at the end of your turn. However, this particular exchange turned out not too equivalent: both cards with this effect proved to be broken beyond imagination.
*** For the uninitiated: Unless you know exactly what you are doing and have built your deck specifically to respond to various threats, playing Necropotence is pretty much suicide.

to:

* Present in the TCG ''TabletopGame/MagicTheGathering'' to an extent. Every spell has a cost. Most are simply {{Mana}} drawn from the land, but others require a life (yours or your creatures), the land itself, or even time (skipping a turn). Several cards will actually kill you if the cost is too much for you to afford.
**
afford. Perhaps the most famous example of this is Necropotence. You don't draw normally near the beginning of your turn; instead, you may pay X life to draw X cards at the end of your turn. However, this particular exchange turned out not too equivalent: both cards with this effect proved to be broken beyond imagination.
***
imagination. For the uninitiated: Unless you know exactly what you are doing and have built your deck specifically to respond to various threats, playing Necropotence is pretty much suicide.



* In ''TabletopGame/{{Exalted}}'', the Sidereal Exalted have the charm called Of Things Desired and Feared, which uses astrology to provide an infallible way to achieve ''any'' objective you can state... for an appropriate price. If what you want to achieve is small, it is likely the price will be something you are willing to pay (a few bruises, the lost of an item, etc.). But if you ask for a Fate-proven way to defeat BigBad or otherway break the game, the price will be something like "your life, the lives of everyone in your Circle, and the complete destruction of all the thing you value and care for".

to:

* In ''TabletopGame/{{Exalted}}'', the ''TabletopGame/{{Exalted}}'':
** The
Sidereal Exalted have the charm called Of Things Desired and Feared, which uses astrology to provide an infallible way to achieve ''any'' objective you can state... for an appropriate price. If what you want to achieve is small, it is likely the price will be something you are willing to pay (a few bruises, the lost of an item, etc.). But if you ask for a Fate-proven way to defeat BigBad or otherway break the game, the price will be something like "your life, the lives of everyone in your Circle, and the complete destruction of all the thing you value and care for".



-->''"With hell's fire, you make a bargain. It costs a little of yourself. The warlock's way was quicker, more effective, or so it seemed. But there comes a time when a price must be paid, and sometimes, it is dear indeed."''

to:

-->''"With --->'''Grom:''' With hell's fire, you make a bargain. It costs a little of yourself. The warlock's way was quicker, more effective, or so it seemed. But there comes a time when a price must be paid, and sometimes, it is dear indeed."''



*** Although now, Warlocks have a low-level spell that lets them restore all their soul shards by apparently breaking off little pieces of their OWN SOUL (at no real cost in gameplay terms, though it is interruptible and thus best used out of combat/between fights).
*** Doomguards don't even require the ritual of summoning or sacrifice of health anymore. Just hit a button, and BOOM he's there fighting on your side for 45 seconds.

to:

*** ** Although now, Warlocks have a low-level spell that lets them restore all their soul shards by apparently breaking off little pieces of their OWN SOUL (at no real cost in gameplay terms, though it is interruptible and thus best used out of combat/between fights).
*** ** Doomguards don't even require the ritual of summoning or sacrifice of health anymore. Just hit a button, and BOOM he's there fighting on your side for 45 seconds.



* The various Dark Powersets from ''VideoGame/CityOfHeroes'' tend to work like this, Dark Miasma in particular. Dark Miasma has some highly potent healing spells (Including the only rezz in the game capable of reviving multiple people.) but in order to use them you have to tap into the life force of your enemies. This is just icing on the cake, really...
** The only real downside of these powers was that you had to have an enemy to engage to use them. So you couldn't heal or rezz BETWEEN fights.

to:

* The various Dark Powersets from ''VideoGame/CityOfHeroes'' tend to work like this, Dark Miasma in particular. Dark Miasma has some highly potent healing spells (Including the only rezz in the game capable of reviving multiple people.) but in order to use them you have to tap into the life force of your enemies. This is just icing on the cake, really...
**
really... The only real downside of these powers was that you had to have an enemy to engage to use them. So you couldn't heal or rezz BETWEEN fights.



* In ''Franchise/DragonAge'', Mages can perform magic effortlessly, but more powerful spells and rituals occasionally require the use of [[GreenRocks Lyrium]], distilled into a consumable liquid form for this purpose. [[BloodMagic Blood Mages]] however, can use either their LifeEnergy or another's to perform powerful feats that non-Blood Mages cannot, such as MindControl, as well as ripping the blood out of their opponents pores.
** While one can learn the skills safely through books written on the subject, these are usually restricted for obvious reasons, thus forcing more desperate (or foolhardy) mages to make a bargain with a Demon to gain the power. What the bargain requires changes from person to person, but most cases end with [[GrandTheftMe the Demon possessing the Mage]] and turning them into [[AndIMustScream an Abomination]].

to:

* In ''Franchise/DragonAge'', Mages can perform magic effortlessly, but more powerful spells and rituals occasionally require the use of [[GreenRocks Lyrium]], distilled into a consumable liquid form for this purpose. [[BloodMagic Blood Mages]] however, can use either their LifeEnergy or another's to perform powerful feats that non-Blood Mages cannot, such as MindControl, as well as ripping the blood out of their opponents pores.
**
pores. While one can learn the skills safely through books written on the subject, these are usually restricted for obvious reasons, thus forcing more desperate (or foolhardy) mages to make a bargain with a Demon to gain the power. What the bargain requires changes from person to person, but most cases end with [[GrandTheftMe the Demon possessing the Mage]] and turning them into [[AndIMustScream an Abomination]].
12th May '16 12:10:13 PM rafi
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* ''Manga/AhMyGoddess'' has the Law of Conservation of Happiness.
** Eventually, granting too many wishes within a short period of time means that someone ends up suffering some form of bad luck.
** This is also how wishes granted by demons run. They usually come with a myriad of attached strings that cause grief and misfortune to the person making the wish.
* In ''Manga/{{Bleach}}'', a Hollow can give up his or her HealingFactor in exchange for extra strength.
* In ''LightNovel/ACertainMagicalIndex'', once one becomes an [[PsychicPowers esper]], they can never use magic, and vice-versa, without suffering extreme damage to their bodies.
** To gain the incredible powers of God's Right Seat, a magician must give up his or her ability to use normal spells. [[spoiler: Acqua of the Back gets around this because his Divine Mother's Mercy removes limitations and secondary conditions. Fiamma of the Right gets around this by brainwashing Index to do the spells for him.]]
* ''Manga/{{CMB}}'' has the rather interesting case in which [[CloudCuckooLander Shinya]] requires a price for solving a mystery; luckily he's very easily bought off so long as it is interesting.
* ''Manga/CodeBreaker'': It turns out that [[spoiler: Ogami's powers come from a DealWithTheDevil: for every upgrade he gets, he loses one of his senses. He's already lost his sense of taste, but "fortunately" Code: Emperor has chosen to take his newly acquired sound powers rather than his hearing... although there's still five upgrades to go..]].
* This trope gets applied vaguely in ''Manga/DeathNote'': though no tangible price or punishment exists for a human who uses the [[ArtifactOfDeath Death Note]] (according to Ryuk), those who use it always end up miserable. [[AGodAmI Light]] vows at the beginning of the story to break this pattern; by the end, [[spoiler:he loses everybody who ever cared about him in any way, then dies in a bloody heap as he begs [[HoistByHisOwnPetard Ryuk to spare his life]]]]. Everyone else who writes in the Death Note [[spoiler:also ends up either miserable or dead]].
* In ''Anime/DragonBallGT'', it is eventually revealed that every time the Dragon Balls grant a wish, they accumulate evil energy to balance the good created by the wish. Unless the evil energy is allowed time to dissipate, the ball eventually won't be able to take it anymore and will burst, unleashing the Shadow Dragons.



* In the multiverse of ''Manga/TsubasaReservoirChronicle'' and ''Manga/{{xxxHOLiC}}'', the price for wishes granted by Yuuko works this way. Some characters are much more wary of the possible implications of this than others. In particular, Kurogane and Doumeki will only ask for Yuuko's help if it is flat-out impossible for them to solve the problem under their own power. This is prudent, as false-hearted or impulsive wishes usually result in nasty karmic payback. Yuuko also has rules about not dealing in wishes of value equal to a human life, as that would implicate the wish-granter in murder.
** For the record, Yuuko accepts items or intangibilities that have both real and emotional power, which include both living and non-living: Kurogane's sword is both a precious reminder of his family and a powerful weapon; Fai's tattoo is imbued with powerful magic for his own safety; and Syaoran and Sakura pay by giving up a portion of Sakura's memories - those which contain Syaoran. This means their previous relationship is sacrificed forever. Syaoran has been edited out of the memories the feathers contain. For example, Sakura can remember the events of her last birthday party, but one seat is mysteriously empty, and there's an odd pause in the dialogue whenever someone would have otherwise said Syaoran's name. One time Sakura almost manages to put two and two together, but passes out and loses all memory of her deduction due to this price. It's not flat-out impossible for Sakura and Syaoran to have a relationship after paying the price, but it has to be rebuilt from the ground up.
** Interestingly, you apparently don't need someone to trade with, just need to have a payment to be given in exchange for a desired end. [[spoiler: Clow and Yuko gained entry into the cycle of reincarnation for the clones by giving their lives up to... nothing in particular. Watanuki and Syaoran Jr. escape from a pocket dimension in exchange for the inability to leave The Shop and the inability to remain in one world for very long, respectively, again not actually selling it to anyone in particular.]]
** It eventually is revealed that whoever is the owner of the Wish Shop is essentially contractually bound to live by this principle at all times, lest they risk getting magically induced injuries from the shop itself as compensation. It's sobering when you realize that this is the primary reason for why Yuuko has made payment requests for the slightest things, even to friends, because no matter how much power she has, she ''can't'' give anyone anything without needing something from them in return... Except for feelings, which are explained to be the only things people can give without a price.
* ''Anime/WitchHunterRobin'' had a doctor whose special witch power allowed him to transfer LifeEnergy from one person to another. He used this to heal patients -- and took the necessary energy for his power from mob bosses. [[spoiler:He ultimately decides to save his human partner by sacrificing his own life.]] Considering that the witch hunters kill most witches they go up against, with those captured alive [[spoiler:taken for experimentation]], he definitely made the right decision. Since the STN-J hunts all Witches regardless of whether they can morally justify the use of their powers or not, Robin ends up learning about the holes in her philosophy by going on a less defensible (and fairly nasty) witch hunt.

to:

* In the multiverse of ''Manga/TsubasaReservoirChronicle'' and ''Manga/{{xxxHOLiC}}'', the price for wishes granted by Yuuko works this way. Some characters are Although it's not too much more wary of the possible implications of this than others. In particular, Kurogane and Doumeki will only ask for Yuuko's help if it is flat-out impossible for them to solve the problem under their own power. This is prudent, as false-hearted or impulsive wishes usually result in nasty karmic payback. Yuuko also has rules about not dealing in wishes of value equal to a human life, as that would implicate the wish-granter in murder.
** For the record, Yuuko accepts items or intangibilities that have both real and emotional power, which include both living and non-living: Kurogane's sword is both a precious reminder of his family and a powerful weapon; Fai's tattoo is imbued with powerful
regular magic for his own safety; and Syaoran and Sakura pay by giving up a portion as it's more of Sakura's memories - those which contain Syaoran. This means their previous relationship is sacrificed forever. Syaoran has been edited out of the memories the feathers contain. For example, Sakura can remember the events of her last birthday party, but one seat is mysteriously empty, and there's an odd pause in the dialogue whenever someone would have otherwise said Syaoran's name. One time Sakura almost manages to put two and two together, but passes out and loses all memory of her deduction due to this price. It's not flat-out impossible for Sakura and Syaoran to have a relationship after paying the price, but it has to be rebuilt from the ground up.
** Interestingly, you apparently don't need someone to trade with, just need to have a payment to be given in exchange for a desired end. [[spoiler: Clow and Yuko gained entry into the cycle of reincarnation for the clones by giving their lives up to... nothing in particular. Watanuki and Syaoran Jr. escape from a pocket dimension in exchange for the inability to leave The Shop and the inability to remain in one world for very long, respectively, again not actually selling it to anyone in particular.]]
** It eventually is revealed that whoever is the owner of the Wish Shop is essentially contractually bound to live by this principle at all times, lest they risk getting magically induced injuries from the shop itself as compensation. It's sobering when you realize that this is the primary reason for why Yuuko has made payment requests for the slightest things, even to friends, because no matter how much power she has, she ''can't'' give anyone anything without needing something from them in return... Except for feelings, which are explained to be the only things
one-use, people at ''Anime/HellGirl'' can give without a price.
* ''Anime/WitchHunterRobin'' had a doctor whose special witch power allowed him to transfer LifeEnergy from
send one person to another. He used this to heal patients -- and took the necessary energy for his power from mob bosses. [[spoiler:He ultimately decides to save his human partner by sacrificing his own life.]] Considering that the witch hunters kill most witches they go up against, with those captured alive [[spoiler:taken for experimentation]], he definitely made the right decision. Since the STN-J hunts all Witches regardless of whether they can morally justify the use of dislike immediately to Hell by contracting Enma Ai. The price is their powers or not, Robin ends up learning about the holes in her philosophy by own soul going on to Hell when they die. That's the reason why many people hesitate in first place: going to Hell is a less defensible (and fairly nasty) witch hunt.really high price. Out of spite, they send their victims into Hell anyways. The lesson is to learn to control your emotions and hatred? or YouCantFightFate? [[LostAesop Who knows?]]
* ''Manga/HibikiNoMahou''. If you want to use magic properly, you need to sacrifice an aspect of your being, like ability to dream, age, or memory; no wonder why magic practitioners are declining.



* ''Manga/HibikiNoMahou''. If you want to use magic properly, you need to sacrifice an aspect of your being, like ability to dream, age, or memory; no wonder why magic practitioners are declining.
* Although it's not too much of a regular magic as it's more of a one-use, people at ''Anime/HellGirl'' can send one person they dislike immediately to Hell by contracting Enma Ai. The price is their own soul going to Hell when they die. That's the reason why many people hesitate in first place: going to Hell is a really high price. Out of spite, they send their victims into Hell anyways. The lesson is to learn to control your emotions and hatred? or YouCantFightFate? [[LostAesop Who knows?]]
* It is the premise of ''Manga/TheLawOfUeki''.
* ''Manga/{{CMB}}'' has the rather interesting case in which [[CloudCuckooLander Shinya]] requires a price for solving a mystery; luckily he's very easily bought off so long as it is interesting.
* ''Manga/CodeBreaker'': It turns out that [[spoiler: Ogami's powers come from a DealWithTheDevil: for every upgrade he gets, he loses one of his senses. He's already lost his sense of taste, but "fortunately" Code: Emperor has chosen to take his newly acquired sound powers rather than his hearing... although there's still five upgrades to go..]].

to:

* ''Manga/HibikiNoMahou''. If you want to use magic properly, you need to sacrifice an aspect of your being, like ability to dream, age, or memory; no wonder why magic practitioners The spiky rokakaka fruits that appears in ''Manga/JoJosBizarreAdventure'' Part 8 are declining.
* Although it's not too much of a regular magic as it's more of a one-use, people at ''Anime/HellGirl'' can send one person
basically an HealingPotion. However...[[spoiler:for whatever ailment the fruits cure, they dislike immediately to Hell by contracting Enma Ai. The price is their own soul going to Hell when they die. That's require the reason why many people hesitate subject to "trade" something in first place: going to Hell is a really high price. Out return. An elderly man regrows one of spite, they send their victims into Hell anyways. The lesson is to learn to control your emotions and hatred? or YouCantFightFate? [[LostAesop Who knows?]]
*
his legs at the cost of his eyesight.]]
%%*
It is the premise of ''Manga/TheLawOfUeki''.
* ''Manga/{{CMB}}'' has the rather interesting case in which [[CloudCuckooLander Shinya]] requires a price for solving a mystery; luckily he's very easily bought off so long as it is interesting.
* ''Manga/CodeBreaker'': It turns out that [[spoiler: Ogami's powers come from a DealWithTheDevil: for every upgrade he gets, he loses one of his senses. He's already lost his sense of taste, but "fortunately" Code: Emperor has chosen to take his newly acquired sound powers rather than his hearing... although there's still five upgrades to go..]].
''Manga/TheLawOfUeki''.



* ''Manga/AhMyGoddess'' has the Law of Conservation of Happiness.
** Eventually, granting too many wishes within a short period of time means that someone ends up suffering some form of bad luck.
** This is also how wishes granted by demons run. They usually come with a myriad of attached strings that cause grief and misfortune to the person making the wish.

to:

* ''Manga/AhMyGoddess'' has While most of the Law magic on ''Anime/OjamajoDoremi'' doesn't have this in place (at least for full-fledged witches and wizards), the forbidden types of Conservation magic ([[EmpathicHealer Healing]], MindControl, [[BackFromTheDead Raising the Dead]]) all have this as part of Happiness.
** Eventually, granting too many wishes within a short period of time means that someone ends up suffering some form of bad luck.
why they are forbidden.
** This * One of the more awesome aspects of the Op-Op Fruit, Trafalgar Law's Devil Fruit in ''Manga/OnePiece'', is also how wishes granted by demons run. They usually come with a myriad of attached strings that cause grief and misfortune to the person making user can [[spoiler:[[ImmortalityInducer grant someone eternal youth]]]]. The catch is that the wish.user must sacrifice their own life to do it.



* In ''LightNovel/ACertainMagicalIndex'', once one becomes an [[PsychicPowers esper]], they can never use magic, and vice-versa, without suffering extreme damage to their bodies.
** To gain the incredible powers of God's Right Seat, a magician must give up his or her ability to use normal spells. [[spoiler: Acqua of the Back gets around this because his Divine Mother's Mercy removes limitations and secondary conditions. Fiamma of the Right gets around this by brainwashing Index to do the spells for him.]]
* While most of the magic on ''Anime/OjamajoDoremi'' doesn't have this in place (at least for full-fledged witches and wizards), the forbidden types of magic ([[EmpathicHealer Healing]], MindControl, [[BackFromTheDead Raising the Dead]]) all have this as part of why they are forbidden.
* This trope gets applied vaguely in ''Manga/DeathNote'': though no tangible price or punishment exists for a human who uses the [[ArtifactOfDeath Death Note]] (according to Ryuk), those who use it always end up miserable. [[AGodAmI Light]] vows at the beginning of the story to break this pattern; by the end, [[spoiler:he loses everybody who ever cared about him in any way, then dies in a bloody heap as he begs [[HoistByHisOwnPetard Ryuk to spare his life]]]]. Everyone else who writes in the Death Note [[spoiler:also ends up either miserable or dead]].
* In ''Manga/{{Bleach}}'', a Hollow can give up his or her HealingFactor in exchange for extra strength.
* One of the more awesome aspects of the Op-Op Fruit, Trafalgar Law's Devil Fruit in ''Manga/OnePiece'', is that the user can [[spoiler:[[ImmortalityInducer grant someone eternal youth]]]]. The catch is that the user must sacrifice their own life to do it.
* In ''Anime/DragonBallGT'', it is eventually revealed that every time the Dragon Balls grant a wish, they accumulate evil energy to balance the good created by the wish. Unless the evil energy is allowed time to dissipate, the ball eventually won't be able to take it anymore and will burst, unleashing the Shadow Dragons.

to:

* In ''LightNovel/ACertainMagicalIndex'', once one becomes an [[PsychicPowers esper]], they can never use magic, the multiverse of ''Manga/TsubasaReservoirChronicle'' and vice-versa, without suffering extreme damage ''Manga/{{xxxHOLiC}}'', the price for wishes granted by Yuuko works this way. Some characters are much more wary of the possible implications of this than others. In particular, Kurogane and Doumeki will only ask for Yuuko's help if it is flat-out impossible for them to solve the problem under their bodies.
** To gain
own power. This is prudent, as false-hearted or impulsive wishes usually result in nasty karmic payback. Yuuko also has rules about not dealing in wishes of value equal to a human life, as that would implicate the incredible powers wish-granter in murder.
** For the record, Yuuko accepts items or intangibilities that have both real and emotional power, which include both living and non-living: Kurogane's sword is both a precious reminder
of God's Right Seat, a magician must give up his or family and a powerful weapon; Fai's tattoo is imbued with powerful magic for his own safety; and Syaoran and Sakura pay by giving up a portion of Sakura's memories - those which contain Syaoran. This means their previous relationship is sacrificed forever. Syaoran has been edited out of the memories the feathers contain. For example, Sakura can remember the events of her ability last birthday party, but one seat is mysteriously empty, and there's an odd pause in the dialogue whenever someone would have otherwise said Syaoran's name. One time Sakura almost manages to use normal spells. put two and two together, but passes out and loses all memory of her deduction due to this price. It's not flat-out impossible for Sakura and Syaoran to have a relationship after paying the price, but it has to be rebuilt from the ground up.
** Interestingly, you apparently don't need someone to trade with, just need to have a payment to be given in exchange for a desired end.
[[spoiler: Acqua of Clow and Yuko gained entry into the Back gets around this because his Divine Mother's Mercy removes limitations cycle of reincarnation for the clones by giving their lives up to... nothing in particular. Watanuki and secondary conditions. Fiamma of Syaoran Jr. escape from a pocket dimension in exchange for the Right gets around this by brainwashing Index inability to do leave The Shop and the spells inability to remain in one world for him.very long, respectively, again not actually selling it to anyone in particular.]]
* While most of the magic on ''Anime/OjamajoDoremi'' doesn't have this in place (at least for full-fledged witches and wizards), the forbidden types of magic ([[EmpathicHealer Healing]], MindControl, [[BackFromTheDead Raising the Dead]]) all have this as part of why they are forbidden.
* This trope gets applied vaguely in ''Manga/DeathNote'': though no tangible price or punishment exists for a human who uses the [[ArtifactOfDeath Death Note]] (according to Ryuk), those who use it always end up miserable. [[AGodAmI Light]] vows at the beginning of the story to break this pattern; by the end, [[spoiler:he loses everybody who ever cared about him in any way, then dies in a bloody heap as he begs [[HoistByHisOwnPetard Ryuk to spare his life]]]]. Everyone else who writes in the Death Note [[spoiler:also ends up either miserable or dead]].
* In ''Manga/{{Bleach}}'', a Hollow can give up his or her HealingFactor in exchange for extra strength.
* One of the more awesome aspects of the Op-Op Fruit, Trafalgar Law's Devil Fruit in ''Manga/OnePiece'', is that the user can [[spoiler:[[ImmortalityInducer grant someone eternal youth]]]]. The catch is that the user must sacrifice their own life to do it.
* In ''Anime/DragonBallGT'', it is
** It eventually is revealed that every time whoever is the Dragon Balls grant a wish, owner of the Wish Shop is essentially contractually bound to live by this principle at all times, lest they accumulate evil energy to balance risk getting magically induced injuries from the good created by shop itself as compensation. It's sobering when you realize that this is the wish. Unless primary reason for why Yuuko has made payment requests for the evil energy is slightest things, even to friends, because no matter how much power she has, she ''can't'' give anyone anything without needing something from them in return... Except for feelings, which are explained to be the only things people can give without a price.
* ''Anime/WitchHunterRobin'' had a doctor whose special witch power
allowed time him to dissipate, transfer LifeEnergy from one person to another. He used this to heal patients -- and took the ball eventually won't be able necessary energy for his power from mob bosses. [[spoiler:He ultimately decides to take it anymore and will burst, unleashing save his human partner by sacrificing his own life.]] Considering that the Shadow Dragons.witch hunters kill most witches they go up against, with those captured alive [[spoiler:taken for experimentation]], he definitely made the right decision. Since the STN-J hunts all Witches regardless of whether they can morally justify the use of their powers or not, Robin ends up learning about the holes in her philosophy by going on a less defensible (and fairly nasty) witch hunt.
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