After my near year long hiatus, I decided to mess around with the newly buffed Condemn build for Sader. I gotta say, it's legit.
I solo'ed GR90 with only 1.3M sheet dmg (red gems). I solo'ed GR87 with 600k sheet dmg before that (blue gems). Obviously, the build isn't really about sheet damage from the comparison.
Currently, using Gogok though because I'm farming for a better ring/neck for another 8% CDR. Once I have that, I'll switch that gem to Stricken since it takes longer to kill the RG than clear the rift.