[[quoteright:350:https://static.tvtropes.org/pmwiki/pub/images/dw_12___klarion_and_etrigan.jpg]]

An auction night takes an interesting turn with the inclusion of a [[ComicBook/KlarionTheWitchBoy witch boy named Klarion]], and [[ComicBook/{{Etrigan}} Jason Blood]], an old friend of Bruce Wayne. Both of them equally interested in a certain branding iron...

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!!Tropes:

* AllThereInTheManual: While a case of "RememberTheNewGuy" within the series itself, Batman and Etrigan first met in ''ComicBook/TheBatmanAdventures Annual'' #2, as detailed by series producers Creator/PaulDini and Creator/BruceTimm.
* AdaptationalVillainy: Klarion's portrayal in the comics generally ranges from an annoying troublemaker (Creator/JackKirby's version) to a well-meaning anti-hero (Creator/GrantMorrison's version). He's clearly evil in this version.
* AllWitchesHaveCats: Not only does Klarion have one as a {{familiar}}, it can turn into a savage cat-humanoid.
* ArtifactOfDoom: A branding iron that can control a demon.
* {{Auction}}: The episode starts with one.
* BeamOWar: Between Etrigan and Klarion after the former re-fuses with Jason Blood.
* CatsAreMean: Klarion's pet cat. It's stated that Klarion turned his parents to mice, and then implied that his cat killed them.
* CreepyChild: Klarion, at least physically and in personality. It's all but stated that he's actually OlderThanTheyLook.
* CutLexLuthorACheck: Seriously, Klarion now has a powerful demon as an obedient slave, and he's using Etrigan to ''steal ice cream and cake''? One gets the idea that, despite his skill in magic, he's nothing but a SpoiledBrat.
* EvilOrphan: Jason mentions that Klarion turned his parents into mice. [[SelfMadeOrphan There is a good chance his pet cat ate them as well.]]
* HonoraryUncle: Subverted. Klarion only calls Blood "Uncle Jason" to [[{{Troll}} annoy him]].
* LiteralSplitPersonality: The reason why Klarion is after the branding iron -- to rip the demon Etrigan out of Jason.
* NoImmortalInertia: Jason begins aging rapidly when Etrigan is separated from him.
* NotEvenBotheringWithTheAccent: Both Blood and Etrigan speak with American accents despite hailing from England.
* OutsideGenreFoe: Klarion wasn't the first supernatural foe Batman has had to deal with ([[Recap/TheAdventuresOfBatmanAndRobinE4Avatar Thoth Khepera has that distinction]]) and it wouldn't be until ''Justice League'' that Batman would gain more experience with the supernatural. But by this point in the DCAU, magical enemies were still uncommon for him and Klarion is the first magical enemy Tim Drake has had to face. The end result is that both Bruce and Tim are out of their element fighting Klarion.
* PunnyName: Donald ''Shaltenpepper''.[[note]]Salt and pepper.[[/note]]
* PrettyInMink: A {{socialite}} at the auction wears a white fur wrap.
* PsychopathicManchild: One would think Klarion would use his newfound control over Etrigan to go on a conquest or at least take over Gotham City. But no. He would rather use Etrigan for a [[EvilIsPetty petty]] [[VillainsOutShopping spree]] as he robs a pastry shop and destroy cinemas playing movies he doesn't like. Still, it doesn't make his actions any less dangerous or villainous.
* RememberTheNewGuy: Within the series itself, this is Jason Blood and Etrigan's debut and he already has a history with Batman. However, as noted in "All There in Manual", Timm and Dini did do an annual detailing their first meeting.
* StraightManAndWiseGuy: Etrigan winds up forced to play the StraightMan to Klarion’s Wise Guy after being enslaved.
* SpecialGuest: ComicBook/{{Etrigan}}, naturally, making his debut in the DCAU.
* SurprisinglyRealisticOutcome: Bruce and Tim are BadassNormal, but are totally out of their element in dealing with magic. Klarion nearly kills Bruce multiple times, and he spends most of the fight running and hiding until he gets an opportunity to steal the brand. Meanwhile, Tim has to watch over a rapidly aging Jason because he doesn’t stand a chance against Klarion or Etrigan, and is easily defeated by Etrigan in a fight.
* TakeThat: People run out of a movie theater screaming, albeit fleeing from Klarion and the possessed Etrigan. The movie playing starred a [[TheAhnold "Donald Shaltenpepper"]], undoubtedly referring to ''Film/BatmanAndRobin'', starring Creator/ArnoldSchwarzenegger.
-->'''Klarion:''' I hate sequels.
* WrongGenreSavvy: Double subverted. Although Batman initially seems accustomed to magic, he proved to be out of his depth dealing with Klarion and an enslaved Etrigan. He only survives with Jason's help.
* YouAreGrounded: When Klarion is finally stopped, we get this gem:
-->'''Etrigan:''' Mother's grief, father's shame, soon he goes to whence he came.\\
'''Robin:''' What's that mean?\\
'''Etrigan:''' [[GoToYourRoom I'm sending him to his room.]]
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