How did the general sulla change the roman government when he became dictator after taking power in 82 b. c.?

Sulla changed the government back to the Patrician or aristocratic rule. (or at least he tried to) He greatly reduced the power of the equestrians, who were most of the judges at the time and weeded out any senators with populist leanings. His use of the proscription helped to rid Rome of many of the Marist party, who he considered subversive.