So the Wiki contains a page on the so-called Ambassador and Pirate Ship combo:
http://wiki.dominionstrategy.com/index.php/Combo:_Ambassador_and_Pirate_Ship . The article explains that Pirate Ship becomes stronger if your opponent has more Coppers to hit, so you should give them Coppers first with Ambassador.
I can't imagine that this ever works out. First of all, the attacks are both terminal, so you risk terminal collission. Second of all, even if you manage to avoid collissions, and you draw Ambassador with 2 Coppers on T3 and Pirate Ship on T4 (the best case scenario), you sacrificed a lot of opportunity cost. You'd rather have a different terminal instead of Pirate Ship, right? Maybe even another Ambassador to get rid of more junk and play the Estate tennis game. Third of all, the fact that you gave your opponent an extra Copper just to take it away again still means the Pirate Ship actually helps them. If it weren't for the Pirate Ship, your opponent would have more junk (Copper) in his deck. So the logic in the article is completely flawed.
The Wiki page links to the original article from Theory, which was posted in 2010, and features a link to an example game. Back then, everybody seemed to think Pirate Ship was good for some reason, so both players opened Pirate Ship. What's more, Theory's opponent back then opened not just Pirate Ship, but
Pirate Ship/Estate. I think we can safely say it is not a good example of how to play Dominion.
I think we should delete the Ambassador/Pirate Ship combo page on the Wiki. It's not a combo, it's not even a synergy. It's just a terrible idea, and the existence of the page might confuse new players who want to become better at Dominion.
Any thoughts?