he best squad i've found is as follows, remove all units but the 2 mages, place 1 mage on the raised ground and the other directly to his right. Max out their magic and chains (9magic, 3 chain) and give the guy on the raised ground 9 health and 1 speed and the other 8 health. Using those 2 units, you can systematically destroy every group flawlessly, just remember to use the mage on lower ground first on warriors as their shield will reduce damage, saving your good mage on high ground to get the max damage bonus. Also as a rule, always pass the first turn so that the enemy can get in range and you get first attack.