I bought a Pirate Ship with the intention to play it. My opponent had no Treasures in their deck. Why would I do that?
Clarification: I have not played Pirate Ship before during this game.
There are lots of reasons. Some that come to mind immediately:
- you want to activate Conspirators
- you want to lower the cost of Peddler
- you want to trigger your opponent's reshuffle
And one that's actually a plausible explanation for why you would do that in a real game:
- to activate Magic Lamp