A cool Fairy Tail OC magic idea for fanfiction could be shadow manipulation. The OC could use shadows to travel, hide, or even attack. They could merge with shadows to become invisible and then surprise their enemies. Another concept is sound magic. The OC can create powerful sonic waves to stun opponents or use sound to communicate over long distances. Also, magic that allows the OC to transform into any animal would be really interesting. It would give them the abilities of different animals like the speed of a cheetah or the strength of a bear.
The OC could have a special item or ability that allows them to absorb magic. Maybe it's a family heirloom or a unique power passed down through generations. In the fanfiction, this could be explored as the OC discovers the origin and true potential of their ability. They could then use this power to help their Fairy Tail comrades in battles, perhaps by absorbing the magic of enemies and using it against them.
One interesting concept could be characters swapping their magic powers and how they adapt to it. For example, Natsu with Erza's requip magic would be really cool. He might use it in a more brute - force way compared to Erza.
One concept could be an OC who is a master of a unique type of magic in the Fairy Tail universe but also has gamer - like abilities such as quick reflexes and strategic thinking from their time in virtual games. This could lead to interesting battles and interactions with other Fairy Tail characters.
One interesting concept could be the unique powers of the original characters (OCs). In fanfiction, authors often create godlike powers for their OCs that can range from controlling elements in extraordinary ways to having the ability to manipulate time or space. For example, an OC might have the power to freeze time for everyone except themselves, which could lead to some really cool action scenes and plot developments.
One interesting concept could be creating new magic spells in the fanfiction. Since Fairy Tail is all about magic, coming up with unique spells that fit the universe can be really cool. For example, a spell that combines different elements in a new way, like fire and water to create a steamy mist that can both heal and damage depending on how it's used.
One interesting concept could be the unique power-ups that the characters might get in a gamer - like setting. For example, they could level up their magic skills in a more numerical and visible way, similar to how characters in a game gain experience points.
In Fairy Tail FeelingStamp Fanfiction, the idea of the stamps interacting with different magic types is quite fascinating. Maybe a Fire - type wizard's magic could be enhanced or altered in unexpected ways when combined with a certain FeelingStamp, leading to cool and original battle scenes.
In Fairy Tail fanfiction, one interesting concept could be exploring different relationships between the guild members that were not fully developed in the original. For example, how some of the minor characters interact on a deeper level. In Hellsing fanfiction, a common concept is exploring the backstories of the vampires in more detail, like their lives before being turned. Also, crossovers between Fairy Tail and Hellsing in fanfiction can bring about unique scenarios where the magic from Fairy Tail meets the dark and violent world of Hellsing.
One interesting concept could be a dark version of the Fairy Tail guild. For example, the characters might have their personalities twisted in a nightmare scenario. Maybe Natsu becomes a cold - hearted character instead of his usual warm - hearted self.
Another aspect might be the exploration of different relationships between the characters. Maybe Gray and Erza end up as a couple in some crack fanfictions, which is a departure from the normal relationships in the original Fairy Tail series. It adds a new and unexpected dynamic to the story. These kinds of pairings can lead to really creative and sometimes hilarious storylines.