Vampirism skill is a bit op comparing to others: choose any close combat and dark magic skill at start, and then
a)go into murk blades to kill any enemy, its hard to aim while enemy is moving, but once he stands still to attack you can land every blades 5 times and get 5x hp/mp on hit for every cast
b)go into composite shot, then passive range skills and you get even more hp/mp per cast than previous build
For both of builds items that increases power makes build even more sick. Did I mentioned you dont need to care about mp except using most expensive skills(that are worse in most of situations cause they can hit single enemy only once)
1.Black ninja are useless. They block in front of opponent so they cant attack anybody
2.2nd level is impossible to win on insane
3.toggling speed to 4x is good idea - big part of this game(at beginning) is just holding button for auto recruiting units and waiting for win