Shao Kahn
In "Mortal Kombat II", Shao Kahn restores Shang Tsung's youth and tries to lure Earth's warriors into Outworld to give himself an advantage. While Shang Tsung and his master are defeated, this plot is merely a distraction while Shang Tsung resurrects Shao Kahn's wife Sindel in Earthrealm. Shao Kahn crosses the dimensional boundaries to claim her, which merges Earthrealm with Outworld and enslaves the souls of billions of people. Shang Tsung is assigned to hunt down survivors, but is defeated by Liu Kang once more.