Well, against them blakies, get yer troops spreed out (must have the ability to rearrange yer troops before combat begins), make sure ye have inititive as high as possible (get a high inititive troop and the talent). Then protect your highest defensive troop with fire resist and go after the blackies. gonna have to rez a lot and damage mitigate. Try to bait them to yer toughest troops and just wail on them. The mass dragonslayer and if ye get lucky with dragon slayer sword to buy helps emensly. They are the meanest troops I know except right behind them are the 3 top Demons can be annoying.