'''Basic Trope''': A Cosmic Force makes sure that good and evil must always be equal.
* '''Straight''': The Good White Knight slays the Evil Black Sorcerer. As a result the Cosmic Force spawns an Evil Knight, a new Black Sorcerer, and the Doom Dragon to balance the sudden spike of good.
** When the Good White Knight slays the Evil Black Sorcerer, the Cosmic Force spawns an entire ''army'' of Evil Knights and Doom Dragons who follow the Sorcerer of the Black Hole, all to balance the sudden spike of good.
** A balance must be kept between balance and imbalance.
** The good White Knight slays the Evil Black Sorcerer. The Sorcerer's apprentice takes his place after his death, making the balance equal quietly.
** The good White Knight slays the Evil Black Sorcerer. After 10 years of peace, another one comes up in some form to fill the power void.
* '''Justified''': When the Good White Knight kills the Evil Black Sorcerer, [[TheDragon his right-hand man]], inspired by the Cosmic Force, regroups elsewhere and becomes the new BigBad, finding that he is at least as good at creating Doom Dragons as the Sorcerer was.
** The Good White Knight kills the Evil Black Sorcerer, which is followed by the rise of the Magician of Light.
** The Evil Black Sorcerer kills the Good White Knight, so the Cosmic Force spawns the Magician of Light to bring back balance.
* '''Subverted''': The Good White Knight prepares to face the Sorcerer of the Black Hole, only to find that it was a friend in disguise, playing a practical joke on him. There never was any evil nor any balance to uphold.
* '''Double Subverted''': The Good White Knight prepares to face the Sorcerer of the Black Hole, only to find that it was a friend in disguise, playing a practical joke on him. However, it turns out that the friend really ''was'' the Sorcerer of the Black Hole using magic to conceal himself, hoping to lull the Knight into a sense of complacency.
** The Cosmic Forces only have Pathetic Goblins available to balance good and evil after the Sorcerer dies... so they send in 999,999,999 of them to make sure that all is balanced.
** A balance must be kept between Balance and Imbalance.
** The Evil of the imbalance set up by a sudden influx of Good itself restores the BalanceBetweenGoodAndEvil -- problem solved.
** The Evil of the imbalance set up by a sudden influx of Good itself restores the BalanceBetweenGoodAndEvil. This means the Evil is no longer there, and the world is in Imbalance, meaning the Evil is there and the world is Balanced, [[LogicBomb meaning]][[YourHeadAsplode ...]]
** Evil and Good have literal spawn points, and any time one or the other is defeated a new one appears instantly.
** The Evil of the imbalance set up by a sudden influx of Good is insufficient to restore the BalanceBetweenGoodAndEvil. More Evil is needed. More Evil is less evil than Less Evil.
* '''Zig Zagged''': ???
** When Good wins, there is no Cosmic Force creating more Evil to balance the scales.
** Good and evil don't have any cosmic significance.
** Evil is treated as an unbalancing force and is eradicated with extreme prejudice.
* '''Enforced''': The writers are trying to explain why villains continue appearing no matter how many the heroes defeat.
* '''Lampshaded''': "I've killed another Black Sorcerer, a Dark Necromancer, and an [[ArsonMurderAndJaywalking Embezzling Vizier]] ''just today''! How many times can evil keep rising up against me?!"
** Someone warns us against doing Good or destroying the Evil, because that would upset the BalanceBetweenGoodAndEvil, [[AndThatsTerrible and that would be terrible.]]
** The leaders of Good and Evil perform a ritual that binds their fates together in order to bring about peace.
* '''Exploited''': After a failed invasion, the Evil Black Sorcerer asks the Good White Knight to slay him, thereby causing a replacement to spawn in the Evil Empire, since this is faster than walking back.
** The Good White Knight writes a letter of requests to the Cosmic Force, asking it not to create any more Evil after slaying the Evil Black Sorcerer.
** The Good White Knight imprisons the Evil Black Sorcerer rather than killing him. The Sorcerer still exists, so it's balanced, but he's kept from actually doing anything bad.
* '''Discussed''': ???
* '''Conversed''': ???
** The finale to every installment in the series shows a new evil [[SealedEvilInACan waking from a can]] immediately after the heroes defeat the last one.
** The heroes wind up in a BadFuture where Evil has wiped out Good. They return to the past [[SetRightWhatOncewentWrong and wipe out Evil]], only to return and find the same BadFuture.
** The Good White Knight, finding that evil continues to rise up no matter what he does, becomes bitter and gives up, refusing to fight the never-ending evil if he can't make a difference in the world.
** Evil and Good are forced to coexist, which means they're in almost constant conflict. After thousands of years of this, the land the work takes place in is a miserable, ruined, wasteland, with disgusted and weary heroes battling it out with equally disgusted and weary villains. Neither can wipe the other out, no one can actually accomplish anything constructive, and everyone's pretty unhappy.
** The Good White Knight's job is smiting evil when it pops up. In this way, he's similar to a pest exterminator. Sure it's a dangerous job but it has plenty of job security.
** Evil and Good are forced to coexist, which means they're in almost constant conflict. To prevent widespread destruction (what's the point in ruling a nuked crater or terrorizing an empty town?), they agree to ritualistic combat like CombatByChampion. They may not be able to wipe each other out but they can certainly get the other under their thumb for a while or at least gain bragging rights.
* '''Played For Laughs''': ThePowersThatBe look upon the setting as a game of Whack-A-Mole.
Back to BalanceBetweenGoodAndEvil
%% Optional items, added after Conversed, at your discretion:
%%* '''Plotted A Good Waste''': ???
%%* '''Played For Drama''': ???