I've never managed to win the 7th wave on the #SpiritIsland "second wave" scenario.
Today I lost wave 7 against Hapsburg, but c'mon! I was on Hapsburg 6 (because the island didn't blight in the previous six games), so the first round explore > build easily leads to lands with 5 villages, which do 13 damage (passing the Hapsburg 8 damage rule).
Have any of you made it past wave 7 (playing against an adversary)? I suppose one could intentionally and repeatedly let the island blight to stay on a lower level, but that seems totally lame to me.
France and Brandenburg both seem impossible (given all the extra villages). With Sweden, I think the Dahan would be pretty much gone by wave 7. With Russia, the extra ravages would be even more painful than normal.
England 5 and 6 are already really hard, but maybe that would be the one to try next?