The Flash might initially be in denial. He's used to Batman always having a plan and his death would be a huge shock. He would then turn his speed into a tool for investigation, trying to find out exactly what happened. Green Lantern could feel a sense of loss but also be spurred into action, using his ring to try and prevent future tragedies like Batman's death. He might create constructs in Batman's memory to inspire the team.
Superman might feel a sense of guilt if he could have saved Naruto but didn't. He's always about saving lives, and Naruto's death would be a blow to his self - image. Batman would see it as a mystery to solve, trying to figure out how Naruto got to their world and what led to his death. Wonder Woman would be saddened by the loss of a potential ally. The Flash might be more cautious in future battles, seeing how quickly Naruto was taken down. Green Lantern could question his own power, as Naruto had unique abilities that he couldn't protect from.
One possible plot could be that Naruto somehow gets transported to the DC universe where the Ace Justice League exists. He could initially be seen as a threat due to his strange powers. But as they get to know him, they realize his good intentions. Naruto could teach the League some of his ninja techniques, like how to use chakra to enhance their physical abilities. And in return, the League could introduce Naruto to advanced technology and different ways of justice in their world.
Well, in a fanfiction, anything can be possible. Naruto's skills like his shadow clones and Rasengan could potentially be used to rescue Ace. Maybe he uses his speed to get through the Justice League's defenses, which are set up around Ace for some reason. And then he uses his clones to create a distraction while he frees Ace with his combat abilities.
The plot in a 'Justice League Unlimited Oc Fanfic' can be really diverse. It might introduce new characters (OCs) with unique powers and backstories. These OCs could interact with the existing Justice League members in various ways. For example, an OC with telepathic abilities might help the League in a battle against a mind - controlling villain. The fanfic could also explore different relationships among the characters, both old and new. It might show how the OCs adapt to the world of the Justice League and how they are received by the established heroes.
In 'justice league unlimited oc fanfiction', the theme of identity crisis is often seen. The OCs are new characters in an established universe, so they struggle with their identity. Another theme is the struggle against prejudice. Since they are original characters, sometimes the other superheroes in the Justice League are prejudiced against them at first. And the theme of growth is also prevalent as the OCs develop their skills and personalities throughout the story.
In my opinion, the most memorable characters in a 'Justice League Unlimited Oc Fanfic' are often those that have complex backstories. For example, an OC who was once a villain but turned good. Their internal struggle between their former evil ways and their new - found heroism is fascinating to read. Also, an OC with the power of invisibility who uses it not just for sneaking around but also to understand the other characters better without being noticed can be quite memorable.
The plot could start with Ace being in trouble in the Justice League's world. Maybe he's been captured by an enemy of the League. Naruto somehow gets wind of this and decides to help. He travels to the Justice League's realm and starts his search for Ace. Along the way, he meets some of the Justice League members who are initially skeptical of him but then see his potential. Together, they find Ace and Naruto uses his jutsu to defeat the bad guys and free Ace.
It's a fictional concept. 'Harry Potter' and 'Death Justice League' are from different fictional universes, and the idea of 'Harry Potter' being 'Death Justice League' fanfiction doesn't align with the original 'Harry Potter' canon. It's likely something created for the sake of creative and often non - traditional crossovers or interpretations in the realm of fan - created content.
It could imply a very creative and off - the - wall crossover. Maybe someone is imagining the characters from 'Harry Potter' in situations or with abilities similar to those in the 'Death Justice League'. It might also suggest a new take on the 'Harry Potter' story where elements of the 'Death Justice League' are incorporated in a fan - created narrative.