Board Thread:Off Topic/@comment-27144409-20160815140118/@comment-26397825-20180409033538

Sentry 616 wrote: While Cinder is more versatile, Natsu is a shonen jump main protagonist, and he consumes fire for power. He can also use lightning a bit, so he might be able to chow down on what I'd expect to be her second choice.

Also, he's far beyond even the average dragonslayer. We saw in the fight against Raven that Cinder's secondary preferred element seems to be earth, actually, which is why she makes obsidian so easily. Have we ever actually seen her use lightning? I don't remember it.

Not saying he wouldn't win, but it wouldn't be as clear cut as "He eats both her preferred elements".