It is not Joke you realy cannot use Rage spirits in all boss Battle. But boss battle is not too hard when you have good army and good strategy. It reminds me my last time I fought with turtle only with one demon in army with Paladin. I also has great artefact, he give me 3 mana points each round and it is realy great for healing. I bring second demon from portal and kill that Turtle with no losses just great army of One Demon
