One popular plot idea is time travel twists. Since it's Time Force, writers often play with the concept of changing the past or future in different ways. For example, a ranger might accidentally change a key event in the past that alters the present.
One idea could be a crossover where Time Force Rangers travel to the SPD era to help with a time - traveling villain. They could use their time - related powers in new ways in the SPD world.
One idea could be a story where the Power Rangers have to face a new villain who can manipulate time. They would have to find a way to break the time loops the villain creates and restore normalcy. Another could be a story where a Ranger loses their powers and has to learn magic from an ancient, forgotten source to regain them. Maybe also a plot where the Rangers are transported to an alternate dimension where the rules of magic are different and they must adapt quickly to survive.
They could be in a situation where they swap powers accidentally. Eric with Wes's powers and vice versa. This would lead to some really interesting character development as they have to adapt to the new powers and learn from each other's fighting styles.
One idea could be that Wes and Eric swap bodies. This would be a comical yet interesting take. They would have to live each other's lives for a while and deal with the consequences. It would also make them see things from the other's perspective, like how Eric might struggle with Wes's family expectations and how Wes would handle Eric's high - tech future gadgets.
One plot idea could be that the OC is a new Mystic Force ranger with powers related to a unique element. Xander could initially be skeptical of the OC but as they go through battles together, they develop a deep friendship. For example, the OC might have the power of sound, and they use it in creative ways to defeat the villains.
Another possibility is that the Power Rangers Wild Force are transported to the Naruto world. They might have to learn chakra control to enhance their Ranger abilities. The Rangers could also teach the ninja new combat techniques using their Ranger weapons and zords. This would create a lot of interesting interactions between the two groups.
For SPD, Sky Tate is quite popular. His growth from a somewhat arrogant recruit to a great leader is an interesting arc that fanfiction writers like to explore. They might write about his further adventures and how he continues to develop as a Ranger.
A great plot might involve the Black Ranger getting lost in a different dimension while on a mission. In this dimension, he has to adapt to new rules and powers while trying to find his way back. He could meet new allies or face enemies that are unique to that place. Also, a plot about the Black Ranger having to train a new recruit who has a lot of potential but also a lot of recklessness could be interesting.
First, focus on your Original Character (OC). Think about their backstory, like where they're from in the Time Force universe. Maybe they have a special power or a unique weapon. For the plot, you could start with a time - related crisis. For example, an evil force is messing with different time periods. Your OC can then team up with the existing Power Rangers. They might have some initial conflicts due to different ways of doing things. But as the story progresses, they learn to work together and save the day. It's important to keep the action flowing and have some character development along the way.
One idea could be a crossover with the Ninja Turtles. The Power Rangers Mystic Force could find themselves in the sewers of New York, teaming up with the Turtles to fight a common enemy like the Foot Clan who has somehow been corrupted by dark magic. This would bring a cool blend of martial arts and magic.