Arc Fatigue: One of the reasons the anime was Cut Short. The show has horrendous pacing and often split some of the major battles into parts. The producers were likely banking on the show being popular in the vein of Dragon Ball to sustain it as well as not catch up too fast to the manga. But Rave Master, while having a good audience, didn't have that kind of pull to keep it afloat. Mashima has stated if the series got another crack at an anime, they would pace it better to avoid this problem (well, that and the series is finished, so the catch up problem wouldn't be an issue now).
The English dub opening, "Raveolution". Notable in that it's one of the few dubs that had an actual band (Reel Big Fish) to preform it. There's even a complete track of the song as well.
The ending, "The Power of Destiny".
The second OP, "Higher and Higher" is pretty catchy as well as cute.
Ogre is a psychopathic brute defined by his violence, lust and thirst for power. He steals a giant battleship called the Silver Ray, destroys the reputation of its creator and uses it to try to annihilate a continent. The hot-tempered Ogre will frequently fly into a rage and go on killing sprees of anyone in sight, as well as sacrificing his minions without a second thought. Additionally, he plans to turn every women in the world into a sex slave, and kidnaps Elie to rape her.
Shakuma Raregroove is the former sorcerer-king of Raregroove and by far the most evil member of his family. He started a war with the kingdom of Symphonia purely for fun, destroying both countries and all their citizens. He killed Haru's grandfather, the king of Symphonia, with a deadly curse. He abandoned his son (King) Gale so he would spend his life enduring so much suffering until he became a world-destroying nihilist. He allows his magical student Haja to initially believe that he merely wants to take over the time-stream in a bid for god-hood, hiding the fact that his true plan is to destroy all of reality out of nothing more than hatred and sadism. He destroyed Sieg's skeleton out of annoyance and proceeds to gloat about his various sins to Elle in hopes in her rage, she'd destroy the universe along with him. On top of all this, unlike most villains in the series, he was never influenced by a Dark Bring and did everything of his own free will.
Cry for the Devil: Just in case you've forgotten what Lucia is fighting for, the chapter where he puts his final plan into motion begins with a flashback to his arrest. The horrified look on his little face after having witnessed the government decide his family is better off wiped off the face of the planet speaks volumes.
Cult Classic: While one of the less well-known series, its original story and well-established background is what attracts its audience.
Draco in Leather Pants: Lucia, who is essentially that world's Hitler, is all too often looked at as a poor troubled boy who just took the only path open to him after having a bad childhood. Yes, getting locked up in prison as a little kid because of who your dad is sucks, but it's not an excuse to go and commit mass murder. It might help that he actually sees himself that way, and has a whole rant in the final battle about how he wasn't given any real options. Of course, Haru's "right, not buying it" helps to balance things out.
The Dark Bring corrupt people and turn them into destruction crazed maniacs because they're part of Endless, whose sole purpose is to destroy the world.
Raregroove can also be transliterated as Realglobe.
Remember when Haru was defeated by Oracion Six and tried to protect Elie with his own flesh? It was identical to the death of Haru's mother.
Fridge Logic: How is it possible that Shiba survived an explosion that destroyed one-tenth of the world, when he was right at the epicenter?
The Overdrive wasn't as powerful as everyone says it is. And as for how he survived being in the middle of it, that's hardly the single most fatal thing a main character has survived in this series. If anything, Shiba's survival at the very beginning sets the tone.
The very first chapter shows Plue saved Shiba using the combined powers of the Rave (or something).
Here's a better one. How is it that in the year 0015 about half of the world (at best) was known, causing that 'destroyed 1/10 of the planet' myth listed above. But in the year 0066 they not only discovered the rest of the world and built thriving cities all over it but developed highly advance air ships?
Growing the Beard: Many would point to Haru's battle with Sieg Hart as the moment.
Harsher in Hindsight: Let's dragon transformation in the final battle becomes this when one gets into the final arc of Fairy Tail and discovers what happens when someone human begins to undergo the horrendous Dragon Seed effects of Dragon Slayer magic, with Irene Belserion being a prime example.
Julia defeats Juria/Jiero by kissing her. However, this is because Juria/Jiero is An Ice Person, so her skeleton is made of ice, so the kiss allows Julia to breathe fire into her body.
For a friendlier variety, there's Elie and Celia the mermaid, who go from rivals in love to very close friends.
Macekre: The English dub has a few unnecessary edits, painfully unfunny puns and ad-libs.
Moral Event Horizon: Played with. King normally would've crossed it when he killed Sakuya, Haru's mom and Gale's wife by proxy and made him into a bomb so he wouldn't ever be near his family; but since this came right after his wife and his son (who was later imprisoned for ten years) was gunned down by an ambitious officer hired by his best friend. It makes it all the more tragic. However King definitely crosses it in the present when he tries to destroy the world out of sheer spite for Gale.
The one who really crosses it is Slade, a soldier from The Empire who has King's wife gunned down and then has his son imprisoned for ten years for being related to his father under the pretense he was dead despite Gale specifically telling him not to, all for a promotion. Despite being a minor character in the long run, it makes you consider a genocidal terrorist leader bent on making a former friend's life a living hell the lesser evil in the latter's flashback.
Doryu when he kills Lilith. But to be fair, he warned her first.
Ogre when he reveals that he ruined Reina's life by having his theft of Silver Ray be placed on her father.
The Blue Guardians when they torture Nagisa.
Shakuma is shown to be a horrible person when he kills Jegan just when he redeemed himself and destroys Sieg's skeleton, but truly crosses it when he does three things: 1.) He was the one who started the war 50 years ago For the Evulz. 2.) When he had the King of Symphonia and Haru's grandfather be cursed to a slow death while deeply enjoying it and 3.) When he is revealed to be King's father and admits that he abandoned him without any care for his well being despite his immense powers.
We get it Doryu, you're the dark lord of darkity darkness who hates humanity and wants to destroy the light. Now shut up and fight Haru already!
The Art Evolution that happened in the Blue Guardians arc that it very similar to One Piece in style has a lot of extremely, ridiculously exaggerated expressions in people's faces that destroys some of the dramatic impact of the story.
Sieg Hart uses this on his enemies to send them to a nightmarish world. When Haru got trapped in it, he watched his mother set herself on fire (which burned him as well) and his sister slit her wrists so she could "give him something to drink".
Also when Deep Snow uses his Dark Bring/Shadow Stone to contort people.
The Blue Guardians in general. Not only are they Ax-Crazytorturers, they're sadism incarnate.
The Producer Thinks of Everything: The first volume's cover already had King and Lucia. Futhermore, in the first chapter Shiba wonders where he first heard Haru's name. Thirty volumes later... Haru travels to the past and Elie yells his name in front of a young Shiba.
Lucia for King. While the latter was Evil Is Cool incarnate of badass who was very Love to Hate especially to what he did to Gale Glory after killing his wife, the former combined with some heavy heaps of Villain Decay comes across as whiny brat with a huge Suicidal Cosmic Temper Tantrum because mommy's not there anymore.
Niebble isn't nearly as cool as Sieg, being a Creator's Pet that appeared with little foreshadowing does not help his case.
Jade has a lot of build up despite not doing anything major in the end despite being Jegan's brother and therefore a Dragon Race like Let.
The Palace Guardians (Let excluded), Orochi and the Five Demon Lords, especially Ashua, the holder of the fifth Sinclair piece don't do much much other than fight the enemies with little to no backstory at all
Villain Decay: Lucia started off as a major threatening force in his first appearance, with further cameos building up his level of threat, then cue the results of his first real fight with Haru, in which he both loses and becomes pitied. Thus, when when he finally decides to change his motives from world domination to universal destruction due to the fact he lost his mommy, he becomes less a threat and more of an annoyance. Even his One-Winged Angel isn't nearly as scary as his dad's.
Even if this is just a change from manga to anime, it still worked. The "Dark Bring" were called the "Shadow Stones", "Demon Card" was called the "Shadow Guard", and the "Sword of Ten Powers" was called the "Decaforce Sword". They actually roll off the tongue a little better. Except for the fact that there was actually a reason behind Demon Card's name, and that the insignia the DC members wear is actually a stylistic version of the DC initials. Shadow Guard still works, but it detracts a bit from its founder's past.
The Ten Commandments > the Ten Powers. Less grand, but more fitting.
shows Plue saved Shiba using the combined powers of the Rave (or something).