It might be a power of illusion. Lucy could create illusions of herself or her celestial spirits to confuse her enemies. This would be a great addition to her combat skills as it would give her an element of surprise and misdirection.
Perhaps it's a power related to the stars in a more direct way. Like she can draw energy from specific constellations and use it to enhance her attacks. For example, if she summons the power of Orion, she gets super strength and accuracy in her attacks.
If Lucy gets a new power, it will likely change the power dynamics in the Fairy Tail guild. She might be able to take on tougher opponents on her own, which could lead to more solo missions for her.
In some fanfictions, Lucy's true power might be related to her celestial spirit heritage in a deeper way. Maybe she can merge with her spirits on a more profound level, not just summoning them for combat. This could give her enhanced physical and magical abilities.
Often, her true power is shown as an amplification of her celestial spirit magic. For instance, she might be able to call upon multiple spirits simultaneously without tiring, which is a significant upgrade from her normal abilities in the original series.
If Lucy never joined Fairy Tail, the friendships and relationships among the characters would form in a very different way. Also, many of the story arcs might not unfold as they do in the original plot.
In Fairy Tail fanfiction, Dark Lucy often represents a more complex and edgy version of the character. She might be portrayed as having a darker past or different powers. For example, she could have been influenced by some dark magic which changed her personality. This can add a new layer of depth to the Fairy Tail universe.
Well, to find a Fairy Tail fanfiction involving Lucy and Froch, start with checking out dedicated Fairy Tail fan communities. These communities often have their own sections for fanfiction. Maybe post a request there asking if anyone knows of such a fic with Lucy and Froch. Another option is to use Google. Type in something like 'Lucy Froch Fairy Tail fanfiction' and look through the search results. Some of the top results might be what you're looking for.
Well, if we consider Lucy as a Dragon Slayer in fanfiction, her magic could be really different from the traditional ones. Maybe she'd have a connection to a celestial dragon, which would be so cool. It would combine her existing celestial spirit magic with the new dragon slayer powers. She could use the stars as a source of power, similar to how other dragon slayers use elements, and it would be a fresh take on her character.
One great fanfiction could be where Lucy has to outwit Midnight in a battle of magic. Maybe she uses her Celestial Spirit powers in a new and creative way to overcome Midnight's illusions. It could be an action - packed story with lots of twists and turns.
I really like 'Lucy's Dream Come True'. It's a fanfic where Lucy gets to achieve all her dreams in a really unique way. It shows her growth as a character and how she uses her magic in creative ways. Another good one is 'Lucy and the Celestial Spirits' which focuses on her relationship with the celestial spirits and how they help her in tough situations.
You can try searching on fanfiction websites like Archive of Our Own or FanFiction.net. Just type in 'Lucy Frosch Fairy Tail' in their search bars, and you might find relevant fanfictions.