Well it wouldn't be the first time Link used someone else to help him solve puzzles and such. For example in WW when you get help from Medli and Makar. And in ST it seem like you use that phantom to help you. So it wouldn't be a completely new idea for a Zelda game. But it would be done on a much larger scale in this game; since you would probably use her for the whole game, and not for just puzzles, but fights as well.

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