For some stories you’re going to spend a TON of time doing research and answering questions that seem less important than your plot: and sometimes not a single bit of that information is going to make it into the final draft. But doing the research is helpful. It can ground your idea, make you sure of your choices, and give you confidence to move forward with a strange concept.
Or, if you’re like me, you find research fun, and eventually have to remind yourself that you need to stop researching and actually write the story.
For my characters’ powers, I’d originally planned on five Elements : Earth, Air, Fire, Water, and Spark (later renamed Electricity). I wanted the first four because I’m super original, and also because they’re literally the four elements of western culture. I included Spark because – if Dr. Frankenstein taught me anything – it’s that you need a ‘spark’ to create life.
Then I started wondering how my characters would get these powers. Mutation? Gamma radiation? Mutant insect bite? Could there be a mutant beaver* biting people, giving them the power of water? And if so, what kind of animal would give fire? Fire ants? Fireflies? Dragons?