* BrokenBase: Third season has split the fandom between supporting Flame Hazes and Tomogara -- and in this case, RootingForTheEmpire is quite understandable.
** Ocean Dub VS Funimation Dub. That is all.
** Yuji's DarkerAndEdgier AntiHero tendencies over the course of season 3
* CrowningMusicOfAwesome: [[AwesomeMusic/ShakuganNoShana Now with its very own page!]]
* DieForOurShip: Kazumi, especially after [[spoiler:Pheles gave her a Hougu which can summon Pheles, but would take Kazumi's life as a price.]]
* DudeNotFunny: [[spoiler:The ending of the ''Shakugan no Shana'' movie. Yuji, believing he's going to fade, finishes what he thinks is his "last speech" to Shana just as the Reiji Maigo replenishes him. Shana and Alastor double over laughing.]]
* EvilIsCool: [[spoiler:Yuji as Snake of the Festival]] very much so, his fans often nickname him as Darth Vader [[spoiler:Yuji]], or just Darth [[spoiler:Yuji]] for short.
* FandomBerserkButton: [[http://www.youtube.com/all_comments?v=7_mJBJWJJUk It seems the correct form of Shana's catchphrase is "Urusai! Urusai! Urusai!!!"]]
* GodModeSue: [[spoiler:Yuji]] after he ascended as Snake of the Festival, he basically and literally became God and needless to say the strongest in the series.
* MemeticMutation:
** URUSAI! URUSAI! URUSAI!
*** URUCHAI! URUCHAI! URUCHAI!
** OH GOD SHANA IS HOT
** [[VerbalTic de arimasu~]]
* NightmareFuel: Being devoured by a Tomogara results in you being replaced by a Torch. Bad enough that your remaining life is spent as a sort of cosmic scab meant to insulate the universe from your disappearance. What makes this NightmareFuel is that when the Torch burns out, not only do you die, but no one will ever remember that you existed at all. There's an episode that chronicles Yuuji trying to save a Torch; watching her run down and burn out is equal parts TearJerker and this trope. If memory serves, the episode even ends with "What have we been doing all day?" when she does vanish. Brrrr.
* ParanoiaFuel: At any time in the past, you may have been killed, eaten, and replaced with a copy ''without you even realizing it''. And eventually, that copy can run out of power...
* RootingForTheEmpire: One interpretation is that the more Crimson Denizens (Guze no Tomogara) are in desperate need of resources and thus feeding on humans is sometimes the only option and some Flame Haze are overzealous. The former is backed up by the idea the Bal Masque was founded by a god, thus they essentially should have the same authority as Flame Haze (though they are not contracted with Crimson Lords). The latter is partially backed up by the fact that Marjory was originally shown as being somewhat of a BloodKnight, thus indicating that there are more violent and less honorable Flame Haze.
** RootingForTheEmpire became a more viable option in the later light novels (and the third season) when it is revealed Bal Masqué's plan, as well as [[spoiler: their new leader Yuji's]], is to create a utopia called Xanadu where Crimson Denizens will not need to devour humans to sustain their existence, and even coexist peacefully with them. [[spoiler: And considering how the series [[TheExtremistWasRight ends]]...]]
* TheScrappy: Kazumi Yoshida. Aside of the DieForOurShip and RealWomenNeverWearDresses factors, there's the fact that people think she's shallow, boring, clichéd schoolgirl-in-love-for-a-classmate, steals too much screentime for her little romantic-anime antiques, has a formidable amount of CommonMarySueTraits and, for the final blow, her impact to the overall plot is almost null. A quick Google search turns up comments on her such as "The single greatest flaw with this series is that she isn't dead yet."
* {{Squick}}: The Aizens, Tiriel and Sorath, [[BrotherSisterIncest make out with each other]]. In public. A lot.
* TearJerker: Poor, poor Hirai...
** Also the end of episode 20, where Wilhelmine is trying to kill Yuji and Shana's far away, very upset.
** The scene where Konoe [[spoiler:dies/is absorbed by Hecate, with little to no resistance at all]]. Its extremely tragic, since the show built her up as such an [[FriendToAllLivingThings innocent character]].
* {{Wangst}}: Often resulting in combat. At times it seems like the series would be half as long if Shana and Kazumi wouldn't take so much time with their angsty internal monologues over Yuji, although Yuji himself isn't immune.
** Indeed, Yuji himself plays this trope at the end of the second season.
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