Okay, I understand what to do next. Even though I figured it out myself, thanks anyway. P.S.: Campaign 3, mission 4, "Win or Lose" Added 26 minutes later: Yeah... Aribban is not a weak boss... He has less health than Uriel (Uriel had 130k HP, while Aribban has 80k HP), but his abilities are good. Each turn, he summons a squad of demons (he summoned 10 Devastators and Marauders for me), drains luck from monsters. His magic attack is 15k, and he has 74% defense... In general, he's a good boss.