Just played a game with Tournament and Rebuild. I bought two Rebuilds to quickly gain a Province, and used Havens to collide my Tournaments and Provinces. When looking at the prizes, I realized that really what I wanted was Duchies for my Rebuilds. I considered Followers to slow my opponent, but not only would the free Estates bog me down, they would have blocked my Rebuilds rather than fueling them towards a Province rush.