Light Values For Relic 3.1
So I did 3 to 4 solo SASTASHA NM runs, solo mind you, and was able to get a notch above on my relic. I.E. I went from Faint to Vigorus in 45 minutes by doing SASTASHA NM solo.
Each SAS NM run could take as long as 6 minutes solo, so in order to do all light in one sitting it will take 2 to 2 and a half hours.
SAS NM by default, even solo, gives BRILLIANT light. Which is 12 but if it was doubled for 3.1 then that's 24 so yeah, 3 to 4 runs of SAS NM to get each LIGHT rating, feeble, faint, robust, etc.
Every test I did was at least 3 or 4 runs of SAS NM solo. Easy LIGHT gain.
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EDIT: Like someone said below, it's 48 LIGHT gain from Sastasha NM.