Aborted Arc: Toward the end, many plotlines had to be cut short due to the manga ending prematurely.
The Nightmare Circus, which might have finally given Zazie some character development, was cut due to the Chao arc taking more time than Akamatsu expected.
There was apparently supposed to be a story during Christmas following the Magical World arc, where Fuuka and Fumika would meet two animals who turned out to be magic princes in disguise that the two would eventually marry. Also, Fuuka and Fumika would have made their Pactios with Negi during this time. The events did happen and are still mentioned, but were never actually shown.
Saving Nagi from the Lifemaker. Nagi appears alive and well in the final chapter, and it is mentioned that he was saved from the Lifemaker through the effort of Negi and his 31 students, and healed by Konoka's magic. However, like with the Chrismas story about Fuuka and Fumika, it is mentioned but never shown.
Adjective Noun Fred: Mahou Sensei Negi(ma) (Magical Teacher Negima). Although the protagonist's name is "Negi", not "Negima", the "ma" is there to make a pun regarding a dish involving green onions by the name of negimakinote And yes, we know that the dish's name is suspiciously similar to a hypothetical Portmanteau Couple Name of the protagonist and a particular member of his harem..
Adventure Rebuff: Negi often tries to keep his students from getting involved in his personal issues, feeling it would put them in danger. It never works.
Aesop Amnesia: Setsuna has to learn over and over that it's okay for her to both want to be happy and to want to protect Konoka. She learns it at the end of the Kyoto arc, during the Mahorafest tournament, gets an Evil Counterpart that makes her angst about it again and post Magic World she still doesn't get it.
Affectionate Nickname: Konoka calls Setsuna "Secchan". Setsuna calls her "Kono-chan" in return sometimes, but mostly sticks with ojou-sama, much to Konoka's chagrin.
Age-Inappropriate Dress: Happens on both sides of the spectrum, from the girls' frequently donning loli bodies and clothing to the Akemi-esque way Eva lounges around in outfits that are not suitable for a (seemingly) ten-year-old girl.
Air Jousting: A frequent element of the series' often high-flying magical battles.
Air Whales: The standard aircraft of the Mundus Magicus, probably because blimps were too mundane. They also come in various other fish-like shapes.
Alchemy Is Magic: Alchemy has shown up in Negima — specifically, the back of volume 21 has about two pages of text describing the history of alchemy and its relationship to "ixir", as it's called in the Magical World.
All In The Manual: Supplementary Bonus chapters revealed as to how Haruna got the money to purchase the Great Paru-Sama: she got rich from selling Yaoi doujins in the Hellas Empire. And apparently, she became a wanted criminal there.
All Part of the Show: The Mahora festival, when several thousand Muggles were roped into fighting an army of demon-powered robots and mechas under the pretence of a giant role-playing game. Of course, the weapons used were only harmful to modesty. Also, the fight at Cinema Village. The comment "Is this for a movie?" was commonly seen in the background. This was used in the Magic Worlds as well, especially during the fight with Fate's minions in Ostia. The comment "Are they doing a movie?" is often seen in the background, said by various demons, anthropomorphic animals, and other magical creatures.
Almost Kiss: Asuna wakes up from a dream remembering her real name, but gets distracted by Konoka and Setsuna about to kiss in the living room. It was for a Pactio! Really!
Alternate Character Reading: Spell names are written in kanji, while their Latin/Greek/whatever pronunciation is shown in furigana. The later anime replicate this by usually having the characters say the Japanese reading while the foreign pronunciation is said simultaneously in an echoey and quieter back track.
Alternative Calendar: The Magical World has a separate calendar, probably because it's Mars. Which does have a different orbit around the sun, after all.
Always in Class One: They're in class 2-A, then move to class 3-A early on. Justified as Mahora Academy does not do class shuffling.
And I Must Scream: The fate of nearly all the "puppets" of the old Cosmo Entelechia. Since they keep regenerating and are protected by powerful barriers, Eva froze everything else around them which keeps them trapped but conscious for all eternity.
Anger Born of Worry: Chisame is at first relieved when Negi wakes up okay from Magea Erebea training, then embarrassed that she was worried and then finally pissed at him.
Arc Number: Prime numbers seem to be very important to magic, especially when it comes to the "arrows of whatever." Those are usually cast as prime numbers (or 1). In particular 67note how many million mages there are on earth and 31note the number of students in Negi's class tend to pop up regularly.
Art Initiates Life: Haruna’s artifact lets her drawings come to life. The more detail she puts into it, including notes, the better they are. One percent of the damage taken by them is inflicted on her. Despite attempts to use it to fight she never comes up with anything that works.
Art Shift: Humorous — Makie in the infirmary after her "vampire attack".
Ass Shove: A Running Gag is Chizuru's attempts to test out a folk remedy for fevers, which involves shoving a spring onion up the sick person's assnote as if having a fever wasn't bad enough already. Kotaro and Natsumi are understandably terrified of her. She finally gets to do it in chapter 348. This doubles as a Stealth Pun since a spring onion in Japanese is "Negi"
Attack! Attack! Attack!: Rakan has a tendency to do this, but unlike some characters who use this trope, he generally tends to get away with it sheerly due to his power. This is also how Fate's minions usually operate, and it hasn't gone too well.
During the early magic world arc when Negi has a fever, Kotaro enters the scene with a smile and a punch to the face. This actually has a good reason for once, though, since he needed to make Negi use a lot of magic by fighting back to cure his fever, which was caused by too much mana in his body thanks to Konoka's recovery spell.
Haruna’s another of the ones who seems fond of entering a scene by hitting Negi.
Nodoka intercepts Haruna with a book when she's making perverse copies of her.
Author Appeal: Ken Akamatsu is really into Cosplay, and rarely passes up opportunities to dress the characters in various costumes.
The pactio cards allow telepathy between users — but in addition to a limited range, it can be blocked very easily. As Negi puts it, "Isn't a cell phone easier?"
Chachamaru's pactio is perhaps the most powerful attack in the series, but since it's a Kill Sat it's hard to utilize effectively. Apart from the difficulty of using it in the middle of a fight, it also has a tremendous area of effect.
"The power of this weapon is so great that I was worried it would be difficult to find any practical use for it... but this opponent should make a perfect trial target. ...Captain! Please maintain a safe distance from the enemy."
Babies Ever After: As of chapter 355, Fuuka and Fumika were one of the first from Class 3-A to marry, having married twin boys, and both had one daughter each. Chizuru, running a day care herself, seems to love spoiling them.
Badass Boast: Nodoka delivers a big one during her first encounter with Dynamis, and after grabbing the latter's copy of the Code of the Lifemaker. What made it all the more impressive is the fact that she is one of the weakest members of the party, and yet pulled it off almost without a hitch.
Ala Alba qualifies as well, as evidenced during the governor's ball, among many other occasions.
Badass Family: Negi, Nagi, Chao, Arika and Asuna. Some of them benefit from Royal Blood magic. If we really stretch, Chachamaru is also a part, given that she considers Chao to be her parent.
Also apparently Lifemaker. Which would make Fate also a member in a sense since the Lifemaker created him
Badass Princess: The Ostian royal family have their own potent and unique magic, making Negi's mother, Arika, able to inflict some pretty serious damage on even Nagi while Princess Asuna is probably the most dangerous person in the magic world even if she isn't the strongest.
Bad Future: The Eight Days Later arc. Chao's future is likely another example, though Mana claims that the tragedy she's trying so hard to set right is no worse than any of the little tragedies that happen every day. Mana turns out to be totally wrong; the disaster is the complete collapse of the Magic World.
Balloon Belly: The result of Makie "helping" Negi prepare for Evangeline's training.
One of the most intimate and familiar things Asuna does is noticing Negi hasn't taken a bath again and tossing him into the water to get clean. It's more big sister intimacy than anything sexual, though, since he's just a kid.
Negi gets to know Kaede better when he runs into her training in the forest and they take a bath together. She encourages him to back and face Evangeline.
Battle Couple: This is what most Mage-Partner relationships turn into after forming a permanent contract. Unless it's between two guys, in which case you get Bash Brothers.
Negi's primary partner is in theory Asuna, but they very rarely get a chance to fight together. That said, their abilities complement each other perfectly and together they oneshot a projection from the Lifemaker.
Setsuna and Konoka move towards a Battle Couple at a glacial pace thanks to Setsuna's angst issues, but eventually they do form a pactio after Konoka asks Setsuna to work together with her as a magister magi.
Battle in the Center of the Mind: After tossing Setsuna around with string during the Mahorafest quarterfinals, Evangeline drags her into an illusory world where her powers aren't sealed and wipes the floor with her casually for a bit.
Played with in the Negi vs Chao battle. One would expect the battle to be won by overwhelming power and Heroic Resolve, but here it's decided by superior battle experience. While Chao's spell was more powerful than the one Negi used, Negi's spell had a shorter incantation and covered about two-thirds of the distance between him and Chao before she was able to launch her attack, immediately putting her on the defensive and critically over-straining her artificial magical abilities.)
Subverted in Negi vs. Rakan: Negi pours all of his magical energy into one gigantic attack and taunts his opponent into doing the same for a contest of strength. Instead of launching his attack, Negi absorbs both his own spell and his opponent's blast and uses the assimilated power to wale on Rakan.
Negi uses his Sagitta Magica in giant waves, which often act like a wave of missiles. By the end of the manga he has powerful spells like the thousand bolts, but still finds use with his arrows of light by simply attacking with thousands of them at once.
Eventually, Yue becomes rather good with magical arrows.
Bears Are Bad News: On the contrary; Chief Mama one of the nicest people in Mundus Magicus... so long as you're on her good side.
Be Careful What You Wish For: When Negi was little, he usually got himself in trouble so that his father would come save to him. When his village was attacked, he believed it was because he wished for really serious trouble.
Natsumi has a thing for Kotaro, who is most oblivious and views her as a sister but has the classic shounen protagonist Jerk with a Heart of Gold thing going for him. Since the former is an immature Tsundere and the latter is a kid, it develops slowly.
Do not hurt or even talk about hurting Konoka in front of Setsuna. And while she doesn't react as strongly as Setsuna, you won't score any points with Asuna either.
Don't threaten any of Negi's students while he's around.
If Evangeline is around, just let Negi beat you because if you hurt him she WILL kick your ass.
Best Her to Bed Her: Played with. Ku Fei made a rule for herself that she would only marry a man stronger than her; though she concedes to Negi's strength, his young age means she isn't comfortable with the idea. When they made a Pactio, Chamo picked that exact moment to wonder why Chao looked so Chinese with a Welsh great-grandfather.
In-Universe example, played absolutely literally in the first chapter, which features Asuna getting stripped twice in front of Takahata. Despite the fact he's known her since she was a little child, in chapter 1 is the result when Asuna gets Negi to read his mind to see what he thinks about her.
Also, Takane's constant Clothing Damage has become a running joke. Everyone just says "Ohh...the stripper" when she introduces herself, and even she's started thinking of herself this way on chapter 165.
After Rakan died, he came back to life through his fighting spirit. Then he did more or less the same thing again after he'd been killed a second time.
At least two of Negi's Pactios qualify as this:
First was with Chachamaru, proving that flesh and blood are not requisites for a soul — possibly by sheer force of will.
The other was with Ayaka, of all people, proving that Power of Love can cause a Pactio Backfire if left unchecked. Despite her lack of magic power, her love almost made her the dominant member of the contract.
After the tournament fight with Rakan, Setsuna and Konoka go on a date. While they're out, they form a pactio right in the middle of the street. Chamo appears with a stopwatch and lets us know the length of the kiss was the longest in the story so far.
Chachamaru's pactio with Negi involves the latter saying screw you pactio system, give her a damn card already. His eyes were flaming at the time, which may or may not have been real, but was certainly very indicative of his will as he kissed her so hard and long that it took up four whole pages and broke the current pactio record set by Konoka and Setsuna.
Black Comedy Rape: Typically subverted, i.e. when Setsuna and Negi are talking about avenging Asuna's honor when they find her naked and trembling. (She was actually tickled into submission after Fate's Petrification only worked on her clothing.)
Black Magic: Magia Erebea draws power from negative emotions and is only usable by those who accept the entirety of their emotional spectrum, good and bad.
Blank Face of Shame: After Asuna's tragically unexpected and sudden death at the end of the first animated adaption, Konoka is shown sitting alone, her bangs obscuring her eyes and the rest of her face a near-blank.
During Misora's hilarious attempt to attempt to deny her identity, big glowing letters appear above her head proclaiming her name. In chapter 110, "Geh, what's with this caption!? Shush, shush!"
Bloodless Carnage: The series generally adhered to this until the beginning of the Magic World arc. Negi gets impaled by a stone spear, complete with enormous blood loss and the obligatory Blood from the Mouth.
Blood Oath: Impliednote Directly stated in Del Rey's English translation, but it's unknown if this is canon to be the preferred way of forming pactios when kissing would be...unpleasant.
Breast Plate: Both played straight and interestingly subverted. While within the manga canon, Asuna is occasionally given armor that fits this trope, some of the side artwork includes her in very fetching, but still perfectly normal, armor.
Caught in a pit filled with giant monsters where magic and ki do not work, Nagi still sprints on through evading every opponent and making superhuman leaps despite carrying an adult woman the whole time.
Evangeline's power is sealed, but even without it she's actually still tougher than almost everyone in the class despite being a little girl. With only enough magic to give her a normal middle schooler's physique she's even capable of fighting evenly with Setsuna.
Negi Springfield wears a bunny costume during a part of the festival arc. While he is wearing the outfit, his normally serious behavior is replaced with childish enthusiasm, and other characters comment on how cute the outfit makes him.
Nodoka sometimes wears a bunny backpack as a cute accessory to her adventuring outfit.
At the beginning of the magic world arc Kotaro’s abilities were generally rated as being a bit higher than Negi's, but come the tournament and Magia Erebea and Kotaro was suddenly vastly outstripped. He didn't catch up by the end of the manga.
Anya comes to find Negi, intending to show off her progress. Naturally, he's way ahead of her.
Parodied by Rakan, including using an attack, named Eternal Negi Fever, on Negi. An attack which he originally developed as a finishing move for Negi and the "For the hell of it Right-Hand Punch".
Also of note in that many of the fighters use "silent incantations," so they aren't actually saying anything, but the name of the attack still appears so that the readers know what's going on.
There was also the fighter in the Mahora Tournament that specifically asked if this was okay.
Most recent one of note? On chapter 328, STUPID DAD PUNCH!!!
Call On Me: Chisame's rescue from the clothes-eating monster.
The Cameo: The Mahora Budokai Arc has quite a few fighting game characters show up in the crowd, such as Athena Asamiya, Terry Bogard, Akuma, Yashiro Nanase, Chris, Hugo, and M. Bison
Cannot Spit It Out: Everyone to Negi's "Is this my mother?" question. Until Rakan just tosses the answer out there with very little build up.
Cards Of Power: The Pactio Cards provide the recipient with personality-based magical powers, which given the Magister's power, can actually be pretty powerful themselves. Anything from a Magical Computer to a giant weaponized paper fan to a mind-reading book are possible.
Career Versus Woman: Setsuna constantly struggles with holding on to both woman (Happiness with Konoka) and career (Not letting happines make her soft in her bodyguard duties to Konoka) but refuses to give up on them.
Also, Negi's attempts to warn everyone of the impending Festival disaster.
Casual Danger Dialogue: While Yue's new classmates identify Negi as a criminal and are trying to beat him up, he dodges all their attacks and tries to reason with them "Erm, please could you..." Then he tosses them effortlessly while making them land on their feet and tries again. "If you could all just calm down, there's something I'd like to discuss". Negotiations fail and he blows off everyone else's clothes.
Catapult Nightmare: Evangeline does this after she gets a fever dream about the Thousand Master.
Negi himself goes through this after his defeat and seperation from his students at the hands of Fate which causes him to have nightmares of his students being murdered while he's seperated.
Catch Phrase: When you have a magic book that lets you mindread anyone who's name you know, "What is your name?" becomes pretty badass.
The class roster. Both the the students' clubs (everything from News Club to Quantum Physics Research Society) and Takamichi's notes, such as the one that singles out Eva as a bigger problem than Negi may be able to handle on his own.
Asuna has a ton of them to herself.
She has a superhuman physique even without magic, presumably thanks to her heritage and her past, where it is implied she learned a little about fighting.
She possesses the rather rare antimagic ability. While not unique, it's actually a huge giveaway to her identity as an Ostian princess utilized as a weapon to those who know their history.
She has close connections to people like Takamichi and Konoka's father Eishun, who are known as legendary war heroes. She traveled with them for awhile.
Her pactio card has Mars as her symbol. Mars is the foundation of the Magic World, where she was a princess.
Cherry Blossoms: Even though it's not a cherry tree... similarly, rose blossom petals are used for a similar effect in an imaginary moment.
Cheshire Cat Grin: Haruna’s only smiles seem to be Cheshire Cat grins. Whenever she's smiling, something bad will happen to someone.
Konoka and Setsuna were childhood friends, though they grew apart after Konoka fell in the river and Setsuna blamed herself for it. After the Kyoto arc, they renew their friendship and begin edging towards a romance.
Anya has a rather obvious crush on Negi, but due to her minor character status it doesn't go anywhere.
Childhood Friends: Asuna met Ayaka when she was a New Transfer Student right after her time with Ala Rubra came to an end and she was getting a fresh start. The two instantly began a vitriolic friendship that really helped Asuna loosen up and become the person she is in the present. Though she doesn't appear much, Ayaka is generally considered to be Asuna's best friend.
One of the only two weapons used by the robot army after the Tournament arc is a laser that only destroys clothing.
The accompanying unsealed demons are bound by "scientific devices" that restrict their powers to the same.
A clothing eating octopus appears briefly to sexually harass the poor Meta Girl.
The Flans Exarmatio spell exists solely for this trope. Negi tends to cast it by accident whenever he sneezes, and a magical all-girls school that features later uses it in an athletic broom contest. It's technical use is to disarm opponents, but it seems to have a very vague idea of what constitutes a "weapon".
When Fate attempts to petrify Asuna during the Kyoto arc, her magic cancel renders her immune to its effects. Her clothes, however, were not protected, and promptly shatter when she moves.
Asuna eventually becomes so used to being a victim of this trope she's built up an immunity to Defeat by Modesty.
In Chapter 277, Yue gets her clothes damaged by a beam that pierced through her and Emily. Rather than treated as fanservice, this is treated as a plot point due to the fact that only Yue's clothes disintegrate while Emily herself disappears.
Confessional: The girls and Negi spend two chapters going to a confessional, manned by a disguised Misora. They unload their anguish, from Genki Girl Makie's worry about having no worries to Negi's deep existential angst, in passing by Setsuna's questions about kissing girls (this is for her to have a pactio and not sexual in nature... probably.). None of it sounded like a true confessional session, of course.
Continuity Lockout: The Ala Alba and Another World animated adaptations assume that viewers have read the first 23+ volumes of the manga, as they were released alongside them. Anyone watching just the anime would be quite confused.
Conveniently Coherent Thoughts: Averted with Nodoka - when she reads minds with her artifact she has to ask what she wants to know to cause them to think about it.
A more subtle example is Fate. Yes, THAT Fate. He will dress up his Amazon Brigade in Meido clothes whenever he can (and does the same to Anya at some point), and when he captures Asuna, he puts her in a really skimpy gown.
Also Kaede. Her pactio kiss involves a look that can best be described as predatory. Then she held that kiss for a few panels and giving Negi a rather deliberate Marshmallow Hell immediately afterward.
Asuna and Negi get in a fight after Wilhelm's attack on Mahora, which his classmates try to help with by faking Negi drowning followed by a fake shark attack. When Asuna instantly leaps in to help and finds out it's a trick, she gets teary eyed because of how worried she was.
When Hakase begins violating Chachamaru's privacy and reading her memories in front of Negi, she rocket punches her and then runs away crying despite having no tear ducts.
After Jack's supposed "death" Chisame starts crying even if she always acted like she hated him.
Rakan and Negi flatten all their opponents on their way to face each other in the finals. Later, Rakan fights Fate's ministras all at once, there's a 'five minutes later' message and the next panel is all of them completely beaten.
The Code of the Lifemaker is the absolute advantage against the magically based Magic World residents, who cannot even really fight back. The best we see is Rakan managing to draw out the fight and needing multiple hits to go down, but even then he had no chance of actually beating Fate.
When Quartum and Quintum interfere during the attack on Cosmo Entelechia, Negi rushes in and tears Quartum in half while Fate has a more even fight with Quintum but still oneshots him once it comes to close quarters combat.
Around chapter 330, Fate and Negi make peace and agree to work together, but then all the dead CE constructs revive and flatten them, necessitating the intervention of Ala Rubra, Konoemon and Evangeline, who is dead serious for once and returns the curb stomping.
Colonel Sanders vs. Kotaro. Despite his best effort, Kotaro isn't able to inflict any damage to his opponent whatsoever due to the former's intangibility. He was still going easy on him too.
Every Ku morning she gets challengers. Every morning she stomps them.