Here's a game I played recently (
http://councilroom.com/game?game_id=game-20110726-100253-c5d43622.html). I jumped out to an early lead by clogging up my opponent's deck with 2x ambassador and quickly accelerated into Grand Markets thanks to some quarries. Unfortunately, she picked up a potion and started picking up possessions. I figure to just race her - she can't play possession that frequently and I can gunk up her deck with ambassadored junk. Unfortunately, that was not to be the case.
First possession, she ambassadors herself a plat and buys a colony (thankfully not sending my plat back).
Second possession, she ambassadors herself a colony and sends two of mine back (ouch!). I go from 4-3 in her favor (with me having a shot at colony + dutchy for the win) to 5-1 in her favor. No chance to catch up.
So the question I have is this: In an ambassador game with possession (and no trashing), do you ignore the ambassadors? Do you deliberately gunk up your deck with green early?
I think I made my deck too efficient - she bought green with my deck, and simply continued to possess my deck while buying small green herself. Maybe I should have just gone possession myself and raced her in greening my deck. Suggestions?