I was wondering what various existing abilities have new synergies people have discovered in R&F. A big surprise for me was Spanish Conquistadors. They convert a city instantly to your religion when you take it with them nearby, just like they always did. But they are much stronger in R&F than in a Vanilla, because you get a very nice +3 era score points if you convert a city you are at war with. If you steam roll a neighbor with a Conquistador army like I did to England in my most recent game, you can easily earn yourself a mid-game Golden Age. What are some other new synergies?