I bought Sewers but when I played it to trash a card after playing Priest, I didn't get the +2 coins state don the Priest card.
Thanks for the report, caramba.
As counter intuitive as it sounds, what happened is actually correct.
Take a look at this thread: http://forum.shuffleit.nl/index.php?topic=3243.0 , where markus and I are explaining it, and maybe also
where the game's designer explains it.