[tinkthank]

Well, Arco is the nation I have played almost none of, but they could easily start cranking out Slave / Crystal Matrixes so that the Priestesses can cast lots of Relief with some Charm in between, while someone carries a Banner of the Northern Thing (the banner that gives everyone +1 astral) -- the Astrologers can then cast power of spheres + Enslave, Antimagic, Doom, and the Luck one, or make communions for Master Enslave, while your Mystics with the correct picks could be in communions casting elemental support spells (Arrow Fend, Flaming Arrows, etc). Well this isnt very creative, maybe I am just not good at Arco.