History Fanfic / Ben10Unlimited

* PlotDivergence: Because of Ben's presence, he's able to avert the fight between Superman and Captain Marvel in ''[[Recap/JusticeLeagueUnlimitedS2E7Clash Clash]]'', and is able to get the two heroes to reconcile by pointing out [[IdiotBall how stupid they'd been]] in [[PoorCommunicationKills not communicating with each other]]. Because of this, Captain Marvel remains on the Justice League rather than leaving as a result of a BrokenPedestal.[[note]]Although ''ComicBook/JusticeLeagueBeyond'' would confirm that he eventually buried the hatchet with the Justice League and rejoined them in the future in canon. This also lines up with Captain Marvel's presence in the fic's ''Young Justice'' material, being present there in that show's canon.[[/note]]

* ForWantOfANail: Because of Ben's presence, he's able to avert the fight between Superman and Captain Marvel in ''[[Recap/JusticeLeagueUnlimitedS2E7Clash Clash]]'', and is able to get the two heroes to reconcile by pointing out [[IdiotBall how stupid they'd been]] in [[PoorCommunicationKills not communicating with each other]]. Because of this, Captain Marvel remains on the Justice League rather than leaving as a result of a BrokenPedestal.[[note]]Although ''ComicBook/JusticeLeagueBeyond'' would confirm that he eventually buried the hatchet with the Justice League and rejoined them in the future in canon. This also lines up with Captain Marvel's presence in the fic's ''Young Justice'' material, being present there in that show's canon.[[/note]]

** In the sequel, Ben and Kara's son Ken holds a massive protective instinct of his little sister Jen, and develops a similar instinct to [[spoiler: [[CuteGhostGirl Secret]], becoming absolutely furious when he learns [[TheSociopath Harm]] [[CainAndAbel killed her]] to become [[OnlyThePureOfHeart pure]] [[PureIsNotGood evil]] and wield the Sword of Beowulf]]. When [[spoiler: Harm]] insinuates that Ken could be like [[spoiler: him if he killed Jen]], it pushes the [[BewareTheNiceOnes normally]] [[GentleGiant soft-spoken]] [[HalfHumanHybrid half-Kryptonian]] into an UnstoppableRage, brutally beating [[spoiler: him]] so badly that [[spoiler:[[TheStoic Raven]] and [[ArcherArchetype Artemis]]]] are left in complete shock. Afterwards, Ken works to specifically assure Jen and himself that he will never hurt her.

** Jason Todd and Tim Drake switch roles as the second and third Robin, as Tim (being based on the DCAU) was the second Robin, and Jason is shown to be the third.[[note]]This was before ''ComicBook/BatmanTheAdventuresContinue'' would later introduce the actual DCAU incarnation of Jason Todd, however, and explicitly state he was Tim's predecessor.[[/note]]

** Jason Todd and Tim Drake switch roles as the second and third Robin, as Tim (being based on the DCAU) was the second Robin, and Jason is shown to be the third.[[note]]This was before ''ComicBook/BatmanTheAdventureContinues'' would later introduce the actual DCAU incarnation of Jason Todd, however, and explicitly state he was Tim's predecessor.[[/note]]

** Jason Todd and Tim Drake switch roles as the second and third Robin, as Tim (being based on the DCAU) was the second Robin, and Jason is shown to be the third.

* ForWantOfANail: Because of Ben's presence, he's able to avert the fight between Superman and Captain Marvel in ''[[Recap/JusticeLeagueUnlimitedS2E7Clash Clash]]'', and is able to get the two heroes to reconcile by pointing out [[IdiotBall how stupid they'd been]] in [[PoorCommunicationKills not communicating with each other]]. Because of this, Captain Marvel remains on the Justice League rather than leaving as a result of a BrokenPedestal.

* ComboPlatterPowers: Each of Ben and Kara's children inherit certain abilities from their father while each has the Kryptonian strength of their mother.
** Ken has [[PlayingWithFire pyrokinesis]], EnergyAbsorption, [[IntangibleMan intangibility]], [[ShockAndAwe electrokinesis]], {{Mana}}, and [[spoiler: [[AtomicSuperpower radiation blasts]]]].
** Jen has [[SizeShifter size changing]], [[MakingASplash hydrokinesis]], [[MagnetismManipulation magnetokinesis]], {{Invisibility}}, [[GreenThumb seed]] [[HavingABlast grenades]], and [[spoiler: [[KamehameHadoken cosmic rays]]]].

* ABirthdayNotABreak: Invoked, then subverted. While celebrating Ben's nineteenth birthday, the original Justice League members and Kara are called to the Watchtower because a being from another universe (an Anodite) has been sighted in Gotham. It turns out to not be a threat; it's Ben's grandmother, Verdona, who's finally found him after almost a year. While [[AbandonmentInducedAnimosity he's angry with her at first for not saving their family and forgetting about him]], they [[EasilyForgiven bury the hatchet]], with Verdona promising to be there for him more often from then on.

* CharactersMostHatedSong: Ben [[spoiler: upon returning to his old universe and defeating Vilgax once and for all with the help of his Kryptonian girlfriend and FoundFamily]], learns that he's become fairly famous in the years since he disappeared, and that someone wrote a song about him. Said song embarrasses him and makes everyone else (even Kara) laugh, but Flash admits to liking it. This is serves as a TakeThat because it was DiegeticSoundtrackUsage of original theme song of [[WesternAnimation/Ben10 original cartoon]].

** Owing to this (and presumably his canon fate in the DCAU), Ocean Master is not a member of the Light and they are only shown to have six members. This also caused a Xenocyte, the parasite used to create [=DNAliens=], to take the place of Starro in the Light's plot to mind control the Justice League, as the absence of Atlantis from the fic meant Black Manta's involvement in stealing Starro is replaced by Klarion acquiring the Xenocyte.

** Owing to this (and presumably his canon fate in the DCAU), Ocean Master is not a member of the Light and they are only shown to have six members. This also caused a Xenocyte, the parasite used to create [=DNAliens=], to take the place of Starro in the Light's plot to mind control the Justice League, as the absence of Atlantis from the fic meant Black Manta could not appear either.

** Owing to this (and presumably his canon fate in the DCAU), Ocean Master is not a member of the Light and they are only shown to have six members.

** Because Ultimate Humongasaur's strength was needed to rip the Black Mercy off of Superman, it latches onto ''him'' next, rather than Batman.

** Or, rather, grandparents as people. Verdona tried to come and help her family when [[spoiler: Vilgax]] attacked, but arrived way too late, finding the house destroyed, Ship injured, the family dead, and Ben missing. She spent some time grieving her husband, children, and grandchildren before she realized that she needed to find Ben. She searches several universes before finally finding him in the DCAU. She admits that it was wrong of her to wait so long to look for Ben. Once he accepts her apology, she makes an effort to be more accessible to him, giving him a Mana crystal so he can contact her, returning Ship to him, and arriving as fast as she can whenever he calls.