Savathun may be the queen of trickery but I think that her tricks will be coming to a close soon. Basically every faction in d2 has a bone to pick with her and wants her dead or taken care of. The pyramids want her dead for Interference during season of arrivals. Xivu Arath wants to capture her for betraying the pact. The Vanguard wants her dead because she's a hive God and is responsible most of the issues we've faced. Mara sov wants her dead because of the dreaming city curse and messing with uldren. Even with the light empowered army I don't think she stands a chance against any of these factions (probably could beat the awoken but they're allied with us for this scenario). The vanguard is familiar with the light and has gaurdians practice killing eachother with it. Xivu Arath is the God of War in the hive and seems to be very powerful. And the hive have all sorts of rituals that can limit the light. All in all savathun is in a lot of trouble. Deceptions can easily fall apart and once they do things don't end well.