Can you have two same hero cards in play at a time? I know you can have only one hero per zone, but if I put out a hero, can I put out the same hero card in play in a different zone. It would seam to me a bid lame if you could, but I see no rules regarding it.

Page 7 of the rules, under UNIQUE CARDS .

cannot play, take control of or put into play another copy of that card.