An exciting solitaire

With a very original game system, based on principles of "deckbuilding", ie a card game that we will improve progressively in the game, this game is a lonely little gem.
It is not at all repetitive because even if the strategy to win is clear, it is difficult to see piecemeal, and we must go to intuition, to feeling, with a little bit of calculation, but not to the point of computational. After a dozen parties, I'm still not guaranteed to win.

The game is easy to learn, because the rules are clear and illustrated with examples. We understand very quickly that there are lots of possible combinations in each round and only the ingenuity used to choose the right one.