The guild's acceptance of Tiamat would likely be a mixed bag. Some of the more adventurous and powerful members like Gildarts might be more open to having Tiamat around. They would see the potential benefits of having such a powerful ally. However, the younger or more timid members could be very hesitant. They might be worried about Tiamat's true intentions or its power getting out of control.
Well, if Tiamat joins Fairy Tail in a fanfiction, it could completely change the power dynamics. Tiamat is often depicted as a very powerful entity in various mythologies. In the Fairy Tail universe, it might either become a powerful ally, helping Fairy Tail face even greater threats like Acnologia or the Alvarez Empire. Or, it could bring in new types of magic that the guild has never seen before, which could be both a boon and a bane as they try to understand and control it.
Natsu would probably be really excited at first. He loves dragons and having a dragon king around would be like a dream come true for him. He'd probably want to immediately challenge Tiamat to a fight to test his strength. Erza, on the other hand, would be more cautious. She'd be on guard, making sure that Tiamat doesn't pose a threat to the guild. Gray might be a bit indifferent at first, but as he sees how Tiamat could be useful in battles, he'd start to warm up to the idea.
Well, one possible plot could be that Tiamat arrives in the Fairy Tail world unexpectedly. At first, the Fairy Tail members might be on guard as Tiamat is a powerful and somewhat menacing figure. But then, Tiamat could turn out to have a noble reason for being there, like seeking help to stop an even greater evil that threatens both its own realm and the world of Fairy Tail. This could lead to an alliance between Tiamat and the Fairy Tail guild, with the members using their unique magic abilities in combination with Tiamat's power to face the new threat.
The unique aspects include the way Tiamat's powers are often re - imagined. In many 'fairy tail tiamat fanfiction', her abilities are combined with new elements or enhanced in ways that are not shown in the original Fairy Tail series. Also, the relationships she forms with other Fairy Tail characters are quite different. She might befriend characters she doesn't interact with in the original, or have new rivalries, which makes for very interesting reading.
The Dragon King in Fairy Tail fanfiction could be a character that is related to the main characters in some way. Maybe it's a long - lost ancestor of Natsu or another dragon slayer. It could also be a villainous figure, bent on ruling over all the dragons and using their power to take over the world of Fairy Tail. In some fanfictions, the Dragon King might have a tragic backstory that led it to become the way it is, like being betrayed by humans in the past and now seeking revenge.
Typically, the Dragon King in fanfiction might have super strength, the ability to fly at extremely high speeds, and control over dragon - related magic like fire or ice breath.
If Kakashi were to join Fairy Tail, it would be an interesting mix. Kakashi is a highly skilled ninja from the Naruto universe, known for his Sharingan and diverse jutsu. In Fairy Tail, he'd likely bring in a whole new set of combat techniques. His calm and collected demeanor would contrast with some of the more boisterous members of Fairy Tail. He might also form interesting relationships. For example, he could bond with Erza over their shared combat experience and sense of justice. And his intelligence could be used to help plan strategies for the guild's battles.
Well, in such a fanfiction, Gajeel would bring a whole new energy. He might be more rebellious as a youngster. His journey to find his place in Fairy Tail could involve getting into small scuffles with other members at first. But as time passes, he realizes that Fairy Tail is a place where he can belong. His growth could be shown through his changing attitude towards the guild's rules and values.
One aspect that could be explored in this fanfiction is Gajeel's growth in magic. As a kid joining Fairy Tail, he would be exposed to different types of magic and training methods. Maybe he starts off with his Iron Dragon Slayer magic being quite basic, and then with the help of the guild's masters and other members, he refines it. He could also learn new skills that complement his existing magic, which would not only make him stronger but also show his development within the guild.