Yeah, I really like the team coordination, FWIW team Ulm/Marignon was going straight for FotA and angels respectively...and we were pretty close to it in the second year. I had well over a hundred earth gems and con-5 before the hostilities started, I was going to cast FotA with about 200 earth gems about halfway through the second year, crap out 50 lightless lanterns (only 1 fire gem apiece with Ulm smiths under the forge) which would have gone straight to the angel factory in Marignon while I started cranking out cheap angel gear (continuing straight to con-8). We both had rainbow pretenders and planned to alchemize whatever we could to keep them angles flowing while I cranked out full sets of fire brand, marble armor, shields of beaten gold, etc. every turn. Would have been great, fielding a steady stream of SCs before we even hit year three...except we ended up being the "***** in the middle" of the other two land teams.
And that, to answer a previous question, is why I picked Ulm.
I think it'd be great with more teams so it's less of a 4X4 blitz, there's lots of great possibilities for two nation teams. As it was there really wasn't an option for any of the land teams as far as who to attack unless they wanted to attack team water in the second year...