How not to foreshadow

the-right-writing:

Maybe your characters are in trouble near the end of your story and you need to go back and make sure the way they get out of it is properly hinted at. Maybe there’s a perfect solution to the plot, but it introduces a large new element that you need to add in.

Don’t just say “something important will happen” or “Amy’s powers will do something huge.” That’s so nonspecific that it hardly counts as foreshadowing. Of course important things will happen. Important things happen...