One common theme is the enhancement of Batman's combat capabilities. The shield often gives him an extra edge in battles, whether it's blocking attacks from super - villains or being used as a weapon. For example, in some stories, the shield can deflect energy blasts which adds a new dimension to his fights.
Characterization is key in a great Batman and Agents of Shield fanfiction. The writers need to capture the essence of both Batman's brooding nature and the diverse personalities of the Agents of Shield characters. If they can make the interactions between these characters feel natural, like Batman teaming up with Coulson and his team, it makes for a really engaging story. Also, a good fanfiction in this category might introduce some unique twists, like a new villain that is a combination of Batman's rogues gallery and a threat from the Agents of Shield world. This adds an element of surprise and keeps the readers hooked.
One possible plot could be that Batman somehow gets transported to the world of Agents of Shield. Maybe a strange experiment by Hydra goes wrong and creates a portal. Batman would then use his detective skills to figure out what's going on with all the super - powered and high - tech stuff in the Agents of Shield world. He might team up with Coulson and his team to stop a common enemy, like a new super - villain created by a combination of Gotham's criminal minds and Hydra's evil plans.
One great place to find Batman and Agents of Shield fanfiction is on Archive of Our Own (AO3). It has a large collection with various storylines. Another option is FanFiction.net. There are many talented writers on these platforms who combine the two universes in interesting ways.
There is 'Batman and the Mysterious Shield'. In this fanfiction, Batman discovers an ancient shield with unknown powers. As he tries to figure out its origin and purpose, he faces many challenges and has to fight off those who also want the shield for their own evil plans. It's an exciting read with a touch of mystery.
Another interesting pairing could be Batman and Daisy Johnson. Daisy has her inhuman powers, especially her seismic abilities. Batman could be intrigued by her powers and try to find ways to use them effectively in combat. And Daisy could learn a lot from Batman's combat training and his no - nonsense attitude towards fighting crime. They could form a strong duo when it comes to facing enemies that require both brute force and strategic thinking.
One possible fanfiction idea about Skye could be a 'what - if' scenario. What if Skye had joined a different organization instead of S.H.I.E.L.D.? How would her character develop differently? This could lead to a whole new set of adventures and relationships, perhaps even changing her moral compass depending on the nature of the new organization.
In some fanfictions, Tony Stark might come to own Shield through his financial power and technological superiority. He could use his vast wealth to buy out the organization or find a way to take over its assets during a time of crisis when Shield is in need of a major overhaul or rescue.
Percy's water - controlling powers could be a great asset in the SHIELD universe. For example, in a situation where there's a flood or a water - based attack by an enemy, he could easily manipulate the water to turn the situation around. His powers might also be useful in interrogations. He could create a water - based illusion or something similar to intimidate the bad guys.
He could be seeking revenge. After being betrayed, Percy might see Shield as a means to get back at those who wronged him. By joining Shield, he may think he can gain the power and resources needed for revenge.