In this fanfiction, perhaps the Grand Magic Games are altered due to the presence of Naruto characters. For example, there could be new events that test both ninja skills and magic. Sasuke could use his Sharingan to counter some of the illusions created by Fairy Tail mages. And characters like Erza would be intrigued by the different fighting styles of the Naruto universe, leading to some epic battles and exchanges of techniques.
One idea could be Natsu getting a new, powerful form during the Grand Magic Games. This form could be a result of some ancient magic he discovers. He then uses this form to defeat a really tough opponent and surprises everyone, including his guildmates.
In Naruto, Naruto himself would be a strong contender. His vast chakra reserves and his ability to use multiple powerful jutsus like the Rasengan and the Sage Mode would give him an edge. From Fairy Tail, Erza would be a top contender. With her Re - Equip magic, she can quickly change into different armors with various abilities, making her very adaptable in different challenges.
Well, one way it could work is by having characters from both Naruto and Fairy Tail participate in a Grand Magic Games - style tournament. The Naruto characters could use their ninja skills, like jutsus, while the Fairy Tail mages use their magic. They'd have to compete in various challenges that test both physical and magical abilities.
They would bring new powers. Naruto's Rasengan could be a very powerful attack in the games. It could be compared to some of the big - hitting magic spells in Fairy Tail.
Natsu Dragneel is very important. His strength and determination are key to the guild's future. Lucy Heartfilia is also important as she continues to grow as a mage. Gray Fullbuster is another important character with his unique ice - magic skills.
One of the key events is the aftermath of the intense battles during the Grand Magic Games. The characters start to rebuild and strengthen their guild. There are also new relationships and rivalries that form as a result of the games.
In this kind of fanfiction, the relationships within the guild could deepen in different ways. Since there's no Grand Magic Games, the members would have more time to interact on a daily basis. This could lead to new romances blooming. For instance, Erza might have more time to get to know Jellal on a personal level without the distractions of the games. Also, the younger members could form stronger bonds with the older, more experienced ones as they would be around each other more often.
In a 'Fairy Tail' fanfiction without the Grand Magic Games, the plot could shift towards more cooperation between guilds. Instead of competing in the games, Fairy Tail could team up with other guilds to face a common threat that they previously ignored due to the focus on the games. This could lead to interesting character interactions, new friendships, and alliances. Also, the lack of the games could mean that the guild masters have more time to strategize about the overall state of the magical world and how to protect it from emerging dangers.
An interesting plot could involve an OC who is actually from a long - lost guild that has a deep connection to the origins of the Grand Magic Games. The OC enters the games with the secret mission of uncovering the truth about their guild's past. As they compete, they start to notice strange things going on behind the scenes that seem to be related to their guild's history. They have to balance their search for the truth with their performance in the games.