Depends what do you mean by demons and what do you mean by repercussions. There is no "official" classification of spirits; the things most "traditional" magicians call demons are spirits dangerous like fire is dangerous, neither benevolent nor malicious and in fact possibly useful. What Catholics call demons (at least one category of what they can demons, to be technical), however, are dangerous like superintelligent clerks in a totalitarian corpocracy who hate you personally with all their being. I would personally stay far from things put under the names broad culture associates with effective, purposeful malice (there is unfortunately a quasi-objective memetic component that doesn't favor revisionist interpretations), at least until you have the insight to consciously dispute those associations. Work with things you don't have to subvert into usefulness, there's plenty of other spirits than demons.Hi I am new here ,Is it true demon gives wealth and fame with no repercussions ? And how do I summon them ?