Subtle, evil machinations
Here is the official history of sith lords for my game, just so we're all clear:
Dark Lords of the Sith:
4000-3996 Exar Kun
[lots of lords]
556-? Gorgos (<- You are here, in 553 BBY)
?-? Erasus (If he is worthy…)
553 BBY (http://starwars.wikia.com/wiki/553_BBY) marks the beginning of the HoloNet News channel of the Galactic Republic, which in my opinion makes it particularly suitable for this campaign of Gorgos beginning to collect information and spread disinformation.