One idea could be an OC with the power to manipulate time joining the Incredibles. They could use their power to prevent disasters or even go back in time to change events that led to Syndrome's rise. Another idea is an OC who is a super - fast healer. They could play a crucial role in patching up the Incredibles after tough battles.
Well, an OC in Incredibles 2 fanfiction could be a young super with the power of telepathy. This OC could be initially feared because of their power but then prove to be an asset to the Incredibles by being able to communicate with enemies and find out their plans. Or, an OC with the power of invisibility could be used for stealth missions that the Incredibles need to undertake. For example, sneaking into a villain's lair to gather information.
An interesting plot for an Incredibles 2 OC fanfiction could involve an OC with the power of elemental control, say, the ability to control water. This OC could help the Incredibles during a flood - related crisis caused by a villain. They could use their power to create barriers of water to protect civilians or even use water jets to attack the bad guys. The OC could also have a backstory about how they discovered their powers and how they were initially scared of them but learned to control them with the help of the Incredibles.
Look to Chapter 25 for the clearest answer. It begins with Therefore, from his childhood, Jiang Shixu had felt an extreme aversion to..., keeps building through Over time, he naturally developed a gap of estrangement between himself..., and lands on Having worked beside Shen Lan for over a decade.
A practical answer is Chapter 18, because it turns the idea into a concrete scene. The chapter opens with In the corner, a girl in a black dress sat quietly, holding a glass of..., adds pressure through I have no reason to joke with the rest of my life." "Moreover, I wouldn't..., and ends on Hurry.
The best chapter pointer here is Chapter 48, "All the Bitter Teas Have Been Taken Away". It opens with He Yun felt guilty for initially ignoring Jiang Li on purpose, and with... and closes on Besides, everyone's phones will be replaced with special smartphones....
Chapter 918, "Who Said She Has No Support?", is the clearest early answer because it turns Meng Xuezhi's situation into a concrete plot event. The chapter gives readers a real answer by opening on However, Meng Wanzhi still didn't want to hear her say anything more,...
The best chapter pointer here is Chapter 23, "Became Trending for Being Scolded". It opens with Although Jiang Li exerted very little strength, Jiang Yan instantly felt... and closes on However, just as she buried herself in the study, pouring over mysticism....
Chapter 804, "Still causing trouble?", is the clearest early answer because it turns Jiang Mingyu's situation into a concrete plot event. The chapter gives readers a real answer by opening on He never imagined he would be scooped up like this!
Chapter 912, "Identical Four Pillars of Destiny?!", is the clearest early answer because it turns Destiny's situation into a concrete plot event. The chapter gives readers a real answer by opening on But the repeated blows made Wan Huixia's husband lose his confidence...
Chapter 18 is the strongest chapter-level answer because it starts from In the corner, a girl in a black dress sat quietly, holding a glass of... and follows through on Hurry home, what is a young lady like you doing running to a place like....
Chapter 803, "Younger Brother Misses Mom", is the clearest early answer because it turns Mom's situation into a concrete plot event. A useful checkpoint is the way the scene starts with Brother, do you think hiding here is a bad idea?" "Don't worry,...
Chapter 831, "Brother, who do you like the most?", is the clearest early answer because it turns Jiang Buchen's situation into a concrete plot event. Early on, Just as Jiang Shixu finished washing up and was getting ready to.... By the end, It seems Sister also likes this handsome brother a lot;