A colleague asked whether it was possible to begin a sentence with the word 'Comes', noting that there should, surely, be an 'It' first. Of course standard grammar requires it, as far as I can tell, and leaving out the pronoun makes the sentence sound weird.
On the other hand, I'm sure I've seen it done before, most likely within advertising (which this example is). Is there a decent explanation for why we can omit the pronoun?