.. and I actually decided to check it. Yes I think we can say with a decent certainty that the sith using two lightsabers at the same time is the sith master. Reasons: The attack happens on the third night. Here the sith lords uses two red lightsabers and the sith apprentice uses a crimson red lightsaber and form Djem So.
Then there is a time where only the sith with the crimson red lightsaber fights and the sith lord is nowhere imo.
Second time both sith attack imo, is when one of them uses force choke to kill his enemy (sith lord imo) , and the other ignites one part of his crimson red lightsaber. then he ignites the other half and he now wields a double bladed lightsaber and fights in form VII.
Thid time, is the death of Ironside. Here ironside fights with a mangeta lightsaber and in form VII . The sith lord shows up to watch the show. The Magneta lightsaber is being destroyed and so the apprentice uses force choke and ignites a double bladed red saber. An-Wan Dyas kills the sith apprentice and he is ironside.
These are basically the lightsaber bits we have to work with. The only flaw I can see is that ATPG descripes Ironsides lightsaber as 'red' in the last writeup which happens 7 night phases after the the ataru dual wielding lightsaber sith showed up. Durring this period of time, one of the attackers has to be sith apprentice, the other sith lord. And I would say the most suggests that the sith lord is the dual wielding ataru user.
As for whether the sith mastered ataru or not, no it does not say he is a master swordsman in the writeup from night phase 3.
Edit: Just a thought..we have played for a long time and it is true psychonaut has been a jedi master for a long time.. So isn't it a little odd that newly promoted knights and so on learn new special powers like vigilante killing, doctor, scanner... And psychonaut has not learned any of those durring his 9 day phases as a jedi master?
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