For Atlantica, first of all, we will brutale the second row. Then freeze with one of your mercs if you could. Then shaman in front row brutal willing last row if possible. If she lived thru a turn then if not then you are already dead. Then shaman into second row middle and noble sacrifice as soon as it could. And after all this just lain back and watch.
Skills(atlantica gold):
Vikings had freezing axe (all up), Shaman had brutal will + noble 50%-50%
Flaws:
Silencing the shaman in the right moment kills the entire group. Low magic def (meteor, bs). Brutal will constantly drain life. Rusty axe. War cry. No holy guard. And many many more.
Starting formation:
Viking BT Viking
Vikig (hero) Viking
Monk Shaman Monk
Well, this worked somewhat better but still has major flaws. First of all you can brutale second row and hgd the first row, aginst possible freezes but if the enemy did not have a viking then shield of prot instead. After this shield of prot second and 3rd row as soon as you could +heal +freezing where necesery or possible. Also here is Atlantica powerleveling.