Welcome to the Official Redemption® Message Board!
I can answer the third one. Lampstand has a target area, and it is "not in battle".It is only if no target area is specified that it defaults to in play.Also, for 2, yes, because it is a teal card.And I guess I know all three and went backwards XDNo, because you are only attacked once, and that is a trigger for the card.
Also, for 2, yes, because it is a teal card.
Actually, since Angelic Guidance doesn't specify "good silver card" you could use it to search for a silver site. As Nameless said, sites have neutral brigades so if you can search for a silver card or discard a teal card, a site qualifies.