Play against Necropolis.

Could someone please explain what "CA" means? I can't figure out what it refers to. Also, what kind of Necromancer is this if he's a Warlock but doesn't have Dark Magic and Summoning skills? There's no point in having one of the schools if it's not used, so either the "Charm" skill should be at level 2, or it shouldn't be leveled up at all, and the focus should be on damage and army bonuses, but then you'd suffer from the Necromancer's spells. And I was also thinking, if "Charm" reduces the Berserk level and prevents Cyclops from being controlled, can a Necromancer, using artifacts that ignore immunity to mind control spells and similar effects, still apply Berserk to Cyclops?