The idea BB, is to resurrect fallen enemy stacks with your necromancers (and or necro call spell), then surround the remaining enemy stacks(s) with these units and blast away with your necromancers area attack.
Get 3 undead stacks around 1 enemy and it's 9 mana and minumum 9 rage every time! Add mana spring spell and your rocking even after 10 rounds!
