after the Red viper is killed and you play "no use for grief" kneeling the 3 influence, the event allows you to search your deck and put into play all your sand snake characters. i have seen other players put into play in this manner unique sand snake characters and dupe them at the same time.
my meta, of course, disagrees with this, stating that the duplicates are only played from hand onto unique characters already in play. They interpret that the event puts into play all sand snake characters simultaneously and thus cannot dupe a character that is not already in play.
question 1) can you play characters with dupes using the event?
question 2) can duplicates come from shadows, your deck, or discard pile if a search and grab effect allows to put into play a card from those places?
question 3) when resolving "no use for grief" does the put into play multiple characters effect happen simultaneously or happen in order chosen by the acting player?
help, cite sources
thanks