I think this is a fairly simple puzzle, but I wanted to post it anyway. The puzzle name is pretty bad. Couldn't think of a good one without giving too much away.
In a solitaire game, you have only a single non-drawing Action card in hand at the start of your turn. No Possession, no durations, nothing on mats. You have not yet purchased any VP cards, and no more than 2 copies of any other card. Starting from this turn, what is the minimum number of turns you need to pile drive Provinces?
Hard Mode: do not assume perfect shuffle luck.
My solution takes
2 turns, including the current one. Feel free to post anything that takes longer, or something that is faster if you can manage it.
If I can throw in an extra duration (from the previous turn), my solution can be pumped up to work for Colonies. How? If you use Caravan or Wharf, Hard Mode still applies to the draw. You can only choose your starting 5 cards.