Gus 12
is an AU crossover of The Owl House and Ben 10, with a human Gus getting the Omnitrix.
- Adaptational Heroism: Frightwig is much less villainous in this AU, even pulling a Heel–Face Turn after Gus reveals that Tibbles was the one who gave her her powers as a ploy to recruit her by acting as her "savior".
- Adaptational Origin Connection: Gus was once friends with the kids in the Newskid Legion.
- Adaptational Species Change: Gus goes from a witch to human.
- Adaptational Superpower Change: Gus gains the power of the Omnitrix instead of his canonical illusion magic.
- Addictive Magic: Like Kevin in canon, Willow is mentally affected by absorbing too much energy and hungers or the power of the Omnitrix.
- Age Lift: Like in the reboot, this AU's version of Frightwig is closer to the heroes in age.
- Cliffhanger: Chapter 12 ends with the heroes getting a call saying that Superman is in trouble.
- Composite Character:
- Gus is combined with Ben as the bearer of the Omnitrix of course.
- Luz has traits of Gwen, beingthe magic user of the team.
- Willow is the equivalent of Kevin, even going through a phase of hungering for the energy of the Omnitrix like he did.
- Amity has traits of Charmcaster, being a magic user taught by her uncle.
- Crossover Relatives:
- This version of Gus is the grandson of Doris Dalton from Ben 10: Race Against Time.
- Rojo is one of the Kanker sisters.
- Hex is Amity's uncle in this AU.
- Death by Adaptation: Hex is killed by Stain in this AU, when canonically he never died.
- Massive Multiplayer Crossover: Besides the obvious The Owl House and Ben 10 elements, characters and plot elements from My Adventures with Superman, Kim Possible, Steven Universe, American Dragon: Jake Long, Ed, Edd n Eddy, Kick Buttowski: Suburban Daredevil, The Powerpuff Girls, and Kid vs. Kat, and Randy Cunningham: 9th Grade Ninja are also present.
- Secret Secret-Keeper: Theresa knew that Randy was the Ninja for some time, both because he announced himself as the Ninja the same way that Randy always said he would and because he was never around when the Ninja was, but kept it a secret.
- Trapped in Villainy: The Rowdyruff Boys show signs that they don't really want to keep fighting the Powerpuff girls and get destroyed again and again, but since Him owns their souls they don't have a choice.
- Wham Episode: Chapter 7 reveals that Zs'Skayr exists in this universe and has history with Eda, with Gus later acquiring his DNA, introduces characters and plot elements from My Adventures with Superman, Kim Possible, Steven Universe, and American Dragon: Jake Long, and has Amity join the group after they rescue her from the Paladins.
