When using Magister Illyrio's passive ability, "You may play attachments from opponents' discard piles as if they were in your hand." may I play a shadows card into my shadows area? Or would it be marshalled into my opponents shadow area?
Example of how I think it works:
In my opponent's discard pile is a VB. I use Illyrio's ability to play it as if it was in my hand into my shadows area. I may bring that out of shadows at the appropriate time BUT if I use its response once it is in play then it would go back into my opponents shadow since FAQ 3.29 states that "When a card leaves play for any reason, it always returns to its owner's discard pile, dead pile, hand, deck, or shadows area (depending on the specific circumstances).