Hmm... you're probably right about the every other side sanctuary thing..
It would be nice to have three sepearate decks for each movie in one deck, so if you play twillight nazzies in sites 1-4 then you'll swap to maybe Easterlings in 5-8 and nazguls again in 9-12.. that would of course put a lot of pressure on the free peoples to be ready for burden and wounds..
Here's another example:
You play Orc Tracker's in FotR sites and also Orc Trackers in TT sites ! :p tehn you could swap to besieger's in RotK sites.. Interessting right..
The Felowship could be:
Frodo, Sam, Aragorn, Legolas, Boromir and Gimli.. And then in site 4 you would get the opotunity to play other copies of those unless they are dead.
The problem could be if you want to play ringbound rangers.. cause there's none in FotR block..
any suggestions?