There would be chaos. The Edo Tensei brings back the dead, and in Fairy Tail, it would disrupt the natural order. Maybe the revived characters would cause trouble or be used as powerful weapons.
Yes, in fanfiction, the author has the creative freedom to make Naruto use Edo Tensei in the Fairy Tail universe. It's a cool crossover concept that can lead to some interesting storylines.
In a Fairy Tail fanfiction involving Naruto's Edo Tensei, it could work by a mage in the Fairy Tail world somehow getting access to the same jutsu principles. Maybe they discover ancient scrolls that detail similar resurrection magic. The Edo Tensei in Naruto brings back the dead with a sacrifice and control over the resurrected. In the Fairy Tail fanfic, it might be tweaked to fit the magic system there, like using magical energy instead of chakra for the sacrifice and control part.
He could revive Minato. Minato was a very powerful ninja, and his return could help Naruto in terms of combat skills and strategic thinking. Also, Minato could pass on some unique jutsus or knowledge that he didn't have a chance to before.
In certain fanfic concepts, Naruto could learn Edo Tensei from Kabuto. Kabuto, having mastered the jutsu, might decide to teach Naruto for some reason. It could be because he sees Naruto's potential to use it in a more positive way compared to how he misused it. Naruto, with his strong sense of justice, would then try to modify the jutsu to be less evil - like not using it to bring back people against their will.
There's also a possibility that it could be an unknown villain. A new character created by the fanfiction author who has a vendetta against Konoha or the ninja world in general and believes that resurrecting Naruto through Edo Tensei would be a way to start some sort of revolution or destruction.
I think Makarov would be an interesting character to revive with Edo Tensei in a fanfiction. He was such a powerful and respected guild master. His revival could bring back his leadership and wisdom to the Fairy Tail guild. Also, he had a deep connection with all the members, and his return could strengthen the guild both morally and in terms of combat capabilities.
In the fanfic, Naruto might use Edo Tensei to resurrect Orochimaru in a controlled way. Since Orochimaru has extensive knowledge of jutsus and the ninja world, Naruto could use him to gain insights into some ancient and powerful techniques. This would create an interesting dynamic as Naruto has to keep Orochimaru in check while also using his knowledge for the greater good.
One interesting aspect of Naruto Kuchiyose Edo Tensei fanfiction is the exploration of different characters brought back through the Edo Tensei jutsu. Writers can create unique storylines by making these resurrected characters interact in new ways. For example, they might have an old enemy team up with a former ally to face a new threat. This jutsu in fanfiction often allows for the resurrection of long - dead fan - favorite characters, which can add a whole new layer of drama and action to the Naruto universe.
In Naruto fanfiction, Edo Tensei is often used in very creative ways. In lemon fanfictions, it might be used to bring back certain characters for unique plot developments. For example, a writer could use Edo Tensei to bring back a beloved character who has a special relationship with the main character. This could then lead to some interesting emotional and plot - driven scenarios that are characteristic of lemon fanfictions, which usually involve some level of romantic or sexual tension. However, it's important to note that not all lemon fanfictions use Edo Tensei in such a straightforward way, and some may subvert the typical use of this jutsu for more complex storytelling.