Alibert manages to break Nox's time-stop and even strikes the Xelor when he's threatening Yugo in episode 2 — though Alibert pays dearly for this.
Ruel becomes one when Yugo is knocked out and his treasure eaten by McDeek in episode 9.
Nox counts as well, the entire first season. He'll do anything to retroactively save his kids. Anything.
In the season 2 finale, Balthazar the extremely ancient dragon is ready to give his life for the Eliatrope children, despite being quite clearly too old to face off against Qilby.
Sadlygrove awakens his latent god powers when his children are in danger.
Paper-Thin Disguise: The "ugly princess" disguises in episode 4. Good enough to fool the cursed princesses... and Sadlygrove, of course.
Parent Service: In season 2 episode 8, Sadlygrove not only blurts out that he'd already seen Evangelyne naked, but helpfully specifies that it wasn't in a dream, thus excluding the mirage from episode 22. Eva's flushed reaction only makes it worse.
Le Parkour: Evangelyne and Remington perform a quite impressive chase all over the chaotic, unstable, ever-shifting "cityscape" of Rubilaxia.
Past-Life Memories: Qilby. He remembers absolutely everything of the several thousand years of his former lifes and will continue to do so in each next reincarnation.
People Jars: Qilby's laboratory inside the Zinit is full of preserving jars containing the last specimens of all the species Qilby brought to extinction in his travels.
Perfectly Cromulent Word: Jactance and his brother Tendinite are doing this all the time when commenting a Gobbowl match. Notably with an overuse of Portmanteau.
Perfect Poison: The bite from the devil roses in episode 7.
Nox healing Alibert of his premature aging in episode 13 of season 1.
Also the Brakmarian delegate in the Council of Twelve meeting in season 2. Brakmar may be a Wretched Hive, but they believe that everything has to be paid for; the delegate tips the Sadida servant, and she's visibly joyed over it.
Willow in episode 14, after getting Moon's hammer.
Another one in episode 17, when Grougaloragran is defeated by Nox and he explodes, his wakfu soaring in the sky. This pillar could be seen all over the world.
Again in episode 22, when a defeated Rubilax reintegrates his sword prison.
And again in episode 25, when the huge teleportation portal is activated. And when Amalia is possessed by the Tree of Life. And when Razortime's Energy Ball hits Sadlygrove.
Still another one in season 2 episode 6, when Yugo and Adamaï activate the Eliacube.
Rushu fusioning with his army of Shushus is the excuse for yet another one in the season 2 finale.
Pilot: Episode 5 was the original series' pilot, hence the overall lack of quality.
Pink Girl, Blue Boy: This world has a species of birds with quite clearly blue males and pink females. (And green males. And red males. And purple males. But only pink females.)
Pointy Ears: More common than not in the Wakfu universe. Also comes in different versions.
Crâs and Sacriers have rather long pointy elf ears. Also Grougaloragran's in humanoid form.
Osamodas, Eliatropes, Iops, Roublards and Eniripsas have shorter pointy ears.
Enutrofs, Fecas and Srams, on the other hand, have normal round ears.
Politically Incorrect Villain: The Brâkmarians, besides being your typical Wretched Hive denizens, are adamant about not letting women play Gobbowl - or even watch the matches.
Portal Cut: The large horizontal portal built by Nox's minions cuts through everything it intersects, and then destroys anything that falls into it — mostly the upper parts of the trees it just cut down — to make room for the giant clockwork mecha.
Portal Network: A series of portals, called the Zaaps, links different locations in the world. Since the world of Wakfu is basically a huge archipelago, it makes sense.
Possession Implies Mastery: While Nox managed to work out some of the Eliacube's functions (over a few hundred years) and use them to an astonishing extent, only an Eliatrope could truly master it.
Powers in the First Episode: Yugo discovers his Eliatrope abilities to open portals, and a few minutes later use them to help defeating a Rubilax-possessed Sadlygrove. This starts the main plot, as 10 years before Grougaloragran "programmed" one of Az's feathers to deliver a message to Yugo when this would happen.
Sadlygrove sometimes throw Rubilax this way in season 2.
Precursors: The civilization of the Eliatropes, who lived thousands of years before the settings of Wakfu and Dofus, before they vanished one day without any trace.
In episode 24 of season 1, two guards are playing the Trading Card Game of the series. No actual cards of the game were shown, though, so it's not that blatant.
Psychic Link: Between a dragon and his/her Eliatrope sibling.
Public Execution: In the Brakmar arc, first Kriss la Krass, and later the Masked Gobbowler and the Brotherhood of Tofu find themselves nearly getting ‘shortened by a head at neck-level’.
In season 1 episode 22, at the start of the fight against Rubilax, it seems at first that Sadlygrove has the upper hand, raining blows on the Shushu. But Rubilax just laughs it off, complains that it tickles... before starting to grow and revealing that the harder he's hit, the bigger he gets.
Also happens shortly in season 2 episode 5 at the start of the fight against the Dragon-Pig.
The heroes (and Kriss la Krass) form an impromptu Boufball team in the city of Brâkmar, naming it the Brak A.C. "A.C." is a real component of some Italian soccer teams, standing for associazione calcio ("soccer association"), but the name is pronounced the same as "bras cassé", lit. "broken arm", but also "good-for-nothing" (note that the French version of Ragtag Bunch of Misfits is called Bande de Bras Cassés).
Also the team they're playing against, the Brak'n'Blacks, a play on a single by AC/DC.
Pure Energy: Razortime fires "Pure Stasis" — concentrated negative wakfu. According to Adamaï, nothing is more dangerous.
Quirky Miniboss Squad: Nox's puppets (Marama, Frisco, Tartufo, and later Deserboss) are this to some extent.
Alibert in episode 2, although Nox reverses the spell in episode 13 of season 1.
Nox suffers this when the Eliacube is no longer sustaining him. 200 years catch up to him and he is nothing more than dust by the graves of his family.
The group gets caught in a time trap that rapidly ages you if you try to move in it. It causes Sadlygrove and Ruel to grow old, but with Yugo's slow growth and Elely's young age, it makes them grow up into adulthood.
Nox who claims that he's been holding the cube for 200 years, which makes him at least this old. However, it's hard to tell if he looks old or not, since he's covered with mummy-like bandages.
Qilby and most of the dragons.
Moon, a cute little monkey who is several centuries old because of his magic hammer. He might be older than that, given that he's a boss in Dofus.
Goultard, too, was originally from Dofus.
Real Men Eat Meat: Yugo, Ruel and Sadlygrove tend to think that. They have a hard time with the vegetarian diet of the Sadidas. Especially noticeable in season 2 episode 5.
Repetitive Name: In the first WAKFU Heroes graphic novel, Korvus Korbiau. Corvus is the genus to which ravens belong, and Korbiau is one vowel away from corbeau, which is the French word for raven. As you've probably guessed, he's the original Black Raven.
Reset Button: Essentially Nox's main goal is to press this button. Collecting all of the Wakfu he can get just to go back in time 200 years and save his family.
Retcon: Episodes 4, 5 and 7 were produced first, with a bit of Executive Meddling. As such, they are rather outside the overall plot of season 1, containing very little mentions of Nox or Oma Island. The only reference to an overarching menace is Eva talking about "Ogrest's Chaos" in episode 5, which was then retconned to have happened 200 years before.
The Reveal: Episode 26 of season 2 finally reveals that under an Eliatrope's hat is a pair of dragon-like wings made of wakfu protruding from his/her head, which also seems to give them the ability to fly.
Reverse Arm-Fold: Nox does this for a big part of the battle in episode 17, not even caring about Grougaloragran, who he lets his puppets take care of.
Rhymes on a Dime: Adamaï delivers a hurricane of rhymes in his introduction to Yugo, and then Yugo starts doing it.
Ribcage Ridge: Yugo stumbles onto the skeleton of a dragon in the desert during episode 21 of season 1.
Riding into the Sunset: Well, flying into the sunset for Phaeris and the heroes at the end of season 2. And for Remington and Grany too, although it's doubtful their leaking sub will get them very far.
Right on Queue: From episode 4, in the flashback showing the backstory of the Ugly Princesses, there is such a long line of princes waiting to woo them that they use a "Take a Number" device. And then again at the end of the episode, after they regain their beauty.
Rip Tailoring: In season 1 episode 22, Sadlygrove rips off his tabard and leaves behind his shoes, as they sport the symbol of the Shushu Guardians Order, which he no longer deems himself worthy of. At the end of the episode, he gets them back, turning the tunic into a Badass Cape.
Prince Armand, princess Amalia, and their father the Sadida king all fit this trope. These three are also probably the most powerful Sadidas in the series, which may have to do with their special link to the Tree of Life.
Spoiler to the max: Yugo.
Prince Adale too.
Running Gag: People throwing up after Yugo shoves them unexpectedly through a portal. First happens to Sadlygrove and Ruel in Season 1, then Amalia in Season 2.
Word of God is that those are references to Space Adventure Cobra.