Who could be the main villain in a 'batman marries wonder woman fanfic'?

One possible plot could be that Batman and Wonder Woman have been fighting side by side for a long time. They gradually develop deep feelings for each other during their adventures. Eventually, Batman overcomes his brooding nature and proposes to Wonder Woman. They then plan a wedding that brings together all the superheroes and villains (in a truce for the day) in a grand celebration. Their union could also mean a stronger alliance in protecting the world.

The Joker could be a great main villain. He could infiltrate the school disguised as a new student or a janitor. He starts causing chaos by spreading his brand of insanity among the students, like setting up pranks that turn dangerous. Batman would immediately recognize his presence, but the Joker is always one step ahead in causing mayhem. Wonder Woman would have to use her lasso of truth to try and get information from the students who have been influenced by the Joker.

Lex Luthor could be a main antagonist. He might see their union as a threat to his power and schemes, and try to break them apart or use their relationship against them.

Lex Luthor could be a likely candidate. He is extremely intelligent and has a long - standing vendetta against superheroes. He might come up with a complex plan using his vast resources and scientific knowledge. For example, he could create a weapon that targets their unique abilities. He could also manipulate other villains and heroes alike to create a situation where Batman and Wonder Woman are isolated and vulnerable.

The Joker could also be a main antagonist in this fanfic. He could be interested in causing chaos not only in Gotham but also in the world of Wonder Woman. His unpredictable nature and love for mayhem would make him a formidable foe for the two heroes. He might come up with a plan that plays on their differences and tries to drive a wedge between them while also causing destruction.

Lex Luthor would be a great choice. He could be plotting against both Batman and Supergirl. He might try to use his intellect to create a weapon that can nullify Supergirl's powers and outwit Batman's strategies at the same time.

Cheetah could be a great villain. She has a connection to Wonder Woman already, but in a crossover, she could be working with some of Batman's rogues like the Penguin. The Penguin could provide the resources while Cheetah does the dirty work in combat against Batman and Wonder Woman.

Ares could be the villain in this story. Since Wonder Woman is without her belt, Ares might think she is weakened. He could try to take advantage of this situation to spread chaos and war. He may have a new plan to finally defeat Wonder Woman once and for all, seeing her without the belt as a sign of vulnerability. Moreover, Ares could be using some new minions or powers that are specifically designed to counter a beltless Wonder Woman.

Lex Luthor could be a great main antagonist. He could be jealous of the trio's popularity and see them as a threat to his own power - hungry plans. He might create elaborate traps and use his vast resources and intellect to try and take them down, all while trying to make it look like they are the bad guys in the public eye.

Lex Luthor could be a great antagonist. He could be jealous of the new alliance between Wonder Woman and Batman and see them as a threat to his own plans for world domination. He might use his intellect and resources to try and turn the public against them or create some high - tech weapons to take them on.