In a fanfiction, the Planettary Anchor could be a catalyst for character growth. For the younger members of Fairy Tail, it could be a test of their courage and magical abilities. They might be forced to step up and learn new skills in order to deal with the situations that the anchor creates. At the same time, the more experienced members would have to reevaluate their strategies and leadership as the anchor brings in new and unexpected challenges. This would lead to a shift in the overall dynamics of the guild as everyone adapts to the changes brought about by the Planettary Anchor.
One possible plot idea could be that the planetary anchor is a powerful magical artifact in the Fairy Tail universe. It could be the key to unlocking a hidden dimension filled with ancient magic. The characters might embark on a quest to find all the pieces of the anchor and face various challenges along the way, including battles with dark mages who also want to use the anchor's power for evil.
Saiyan characters often bring a new level of physical power. In Fairy Tail, most characters rely on magic, but a Saiyan's brute strength and ability to transform can shift the balance of power in battles. For example, a Saiyan going Super Saiyan could be a game - changer against a powerful dark wizard.
The power balance would shift significantly. Acnologia is extremely powerful, so the guild would become a much more formidable force. There would be a lot of unease among the members at first, especially those who have heard of his past deeds. But his presence could also inspire some members to train harder to reach his level. The guild's reputation would also change, as having Acnologia in Fairy Tail would attract both fear and respect from other guilds.
Their marriage could also lead to more diplomatic relations within the guild. Levy is friendly with most members, and Gajeel has his own group of comrades. Their union could bridge any gaps between different cliques in the guild. For instance, if there were disputes between the more bookish members and the combat - focused ones, Gajeel and Levy could step in and mediate, using their combined influence.
It could be incorporated as a McGuffin. For example, the characters hear rumors about the planetary anchor and its great power. They then go on a quest to find it. Along the way, they encounter various challenges and enemies related to those who also seek the anchor.
The Wood Style would introduce a whole new element of combat. In Fairy Tail, most of the magic is elemental - based like fire, water, etc. or celestial - based. Wood Style could provide a more strategic and defensive approach. For example, a character using Wood Style could quickly create barriers or traps made of wood during battles. This would force the opponents in Fairy Tail to adapt their fighting styles.
I'm not sure specifically as it could cover a wide range of things. It might be a fan - made story in the 'Fairy Tail' universe that involves some sort of planetary anchor concept. Maybe it's about a magical item or power that acts as an anchor for a planet in the 'Fairy Tail' world.
You could try fanfiction websites like FanFiction.net or Archive of Our Own. They have a large collection of 'Fairy Tail' fanfictions and there's a good chance you'll find the 'fairy tail planetary anchor' one there.
To write their character dynamics well, focus on their differences. Macao is a more experienced, father - like figure in the guild. Cana, on the other hand, is a bit more carefree. Have Macao be the voice of reason when Cana gets into some of her more impulsive ideas. For example, when Cana wants to take on a dangerous mission alone, Macao could step in and say they should plan better.
Writers often portray their relationship as complex. Jellal's past actions create a sense of guilt and a need for redemption, which Erza is sometimes conflicted about accepting. Some writers show Erza as being hesitant to fully trust Jellal again, while still having deep - seated feelings for him.