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Playing With / No Ontological Inertia

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Basic Trope: Effects caused by magic do not outlive the mage.

  • Straight: The heroes kill Marco the Magnificent. All the people he turned to stone return to living flesh.
  • Exaggerated: The heroes kill Emperor Evulz at the end of Tales of Troperia. The entire Empire transforms from a monster-infested volcanic wasteland to a peaceful verdant paradise.
  • Downplayed: The Heroes break Marco the Magnificent's will upon the natural order of the universe. All the things he has done with magic are undone.
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  • Justified: "Magic" is the imposition of the caster's will upon the natural order of the universe. Once that will no longer exists, the universe snaps back to its normal state.
  • Inverted:
    • Ontological Inertia
    • Or, the heros find an elixer that can turn fossilized people normal again, when they're done pouring it on the statues, Marco the Magnificent dies.
    • Or, after the Cosmic Horror's monsters and devil spawns are all killed, the Cosmic Horror suddenly dies.
    • Only by sacrificing themselves can a mage sustain magic beyond their ability to concentrate on it.
  • Subverted: Emperor Evulz is slain, but despite what's happened with all other magical enemies, his works do not fade.
  • Double Subverted: ...because that was only a magical duplicate of the Emperor, of course! Genre savvy readers knew something was up, because they were only halfway through the trilogy.
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  • Parodied: Magical effects only last as long as the mage is concentrating on them and Ichigo has Attention Deficit... Ooh, Shiny!.
  • Zig Zagged: Some magical effects fade with the death of the caster, others don't, depending on the rules of magic in the story.
  • Averted: No mages die in the course of the story, so whether their spells have ontological inertia or not is not tested.
  • Enforced: "We want to do lots of transformations of the main characters, but have them clear again by the next episode. How about making it so the transformations go away when the villain does?"
  • Lampshaded: "Magic is like dewdrops and rainbows, beautiful but impermanent."
  • Invoked: Generally invoked in-universe.
  • Exploited: Alice wants to undo Marco's enchantments, so she kills him, knowing they can't continue without him.
  • Defied: Marco the Magnificent researches ways to keep his spells powered even after his death, to be a permanent monument to his greatness.
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  • Discussed: "Don't worry, Alice. All we have to do is find the monster that did this and get rid of them. Then everyone in the village will be fine again."
  • Conversed: "It must be a bummer to study magic all that time and then learn it's all just going to go away in the end."
  • Deconstructed:
    • Marco the Magnificent is fully aware that the effects of his magic will fade with his death. That's why he's hellbent on attaining eternal life, regardless of the cost.
    • Emperor Evulz has as much of his dirty work done by his non-magical minions as possible, so the effects will be permanent. There's a reason why he has had slaves building his new palace by hand for the last eight years rather than conjure one up overnight.
    • Alternately, and in addition to Marco's reason for focusing on eternal life, the heroes issue him a Shut Up, Hannibal! lecture and promptly exterminate the foul being that was once a mage. Unfortunately, the magic that started Marco on his dark quest for immortality was not a selfish magic, but rather a magic-powered cage around an even stronger evil. In addition, any beneficial magic he may have done before becoming an evil mage goes away as well.
  • Reconstructed: However, despite the effort, it turns out the work done by his slaves, who are creatures created by magic, are undone as well no matter their efforts to the contrary.

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