His deal was simply that he was an excellent con man, to the point where he was able to go from nothing to be on good terms with the royal family. Also people were incredibly gullible and would have more than likely accepted any form of nonscientific witchery if one had the confidence to pull it off. Which Rasputin certainly did, so good for him.
I never got the whole deal with Rasputin. He was a poor villager that became a religious nutjob, right? Like, he would be a crazy hobo rambling about the end times under a bridge in modern times. Why did everyone want him dead so much?
>tsar at the front fighting germans (and losing)
>morale bad at home
>tsarina is left at home to run tsar's household and court
>council of grand princes ran the country in tsar's absense. tsarina had a seat on council.
>tsarina was desperate find cure for her son's (and tsar's only male heir) haemophilia
>where medicine failed her, she turned to mystics
>Rasputin was her go to mystic and exerted a great deal of influence over her and was rumored to be her lover
>grand princes hatched plot to murder him so he would stop influencing her and the rest of the royal court