Well, Naruto could potentially have a wind - based magic that is similar to his Rasengan. He might be able to create powerful gusts of wind or even form wind - like constructs. Sasuke, on the other hand, might have some sort of dark or fire - based magic. Given his affinity for fire jutsu in Naruto, it could translate to a more intense and perhaps shadow - infused fire magic in the Fairy Tail universe.
They would probably start at a relatively low rank. Naruto's exuberant and friendly personality might make him a bit of a wildcard at first. He'd need to prove himself through his new magical abilities. Sasuke, being more reserved, might be seen as aloof. But as they show their strength and loyalty, they could gradually move up. Maybe Naruto would become popular among the more light - hearted members, while Sasuke would earn respect from the more serious ones.
One popular 'End Join Fairy Tail' fanfiction might be 'The New Adventure'. It often features new characters joining the Fairy Tail guild and going on unique quests. Another could be 'End Join: The Power Within' which focuses on the development of the joined characters' powers within the Fairy Tail universe.
First, you need to know the Fairy Tail universe well. Read the original manga or watch the anime. Then, think about the characters you want to have join at the end. Create a backstory for them that fits into the Fairy Tail world. For example, if it's a character from a different land, explain how they heard about Fairy Tail and what made them want to join.
Well, Naruto's chakra-based powers like the Rasengan could be adapted in Fairy Tail's magic system perhaps as a unique form of energy magic. Gaara's sand control might be seen as a type of earth - based magic. Naruto's ability to summon toads could also be translated into some sort of summoning magic in the Fairy Tail world. And Gaara's connection to the tailed beast could be a super - powerful magic source within the Fairy Tail universe.
It could be that in this particular fanfiction, the writer has a different vision for Lucy's character development. Perhaps they think she can grow more independently outside of Fairy Tail. There might also be some plot twists that prevent her from joining, like she has a prior obligation to another group or person that conflicts with joining Fairy Tail.
Sasuke's Sharingan would be a very unique ability in the Fairy Tail world. It could give him an edge in combat against wizards. For example, he could use it to predict their attacks and counter them quickly. His fire - style jutsu could be on par with some of the fire - based magic in Fairy Tail, like Natsu's Dragon Slayer magic. Sasuke could also use his ninja skills such as stealth and quick movement to surprise his opponents in this new world.
Well, without more context, 'her' could be any number of characters. It might be a new character created for the fanfiction. Natsu might want her to join Fairy Tail because he sees potential in her magic abilities. Fairy Tail is all about accepting people with different powers and making them part of the family.
Naruto could be a front - line fighter. His combat skills and powerful jutsus would be great for taking on tough enemies directly. He'd be the one charging into battle without hesitation. Gaara, with his sand powers, could be a great defender. He could protect the guild hall or his comrades during battles. His sand can form barriers and attack enemies at the same time.
In that fanfiction, it might be designed that way. Naruto has incredible powers in his own series, like his various jutsu. If translated into the Fairy Tail world in fanfiction, his skills could potentially make him very powerful. But it also depends on how the author of the fanfiction interprets and balances the power systems of both universes.