I noticed that almost no one on poe ninja is using shroud MF build, even though it seems very good for MF unlike omniscience. It makes you quite tanky and it has good damage scaling. The cost is losing greed's embrace which gives up to 15% quant and 50% rarity. Of course that is a loss but I don't think it's big enough to ignore this option when lacking dps (relevant this league). Pob looks like this, my dps is a bit lower than expected because I prefer using the rare/unique identifier+tincture from maji over primalist using charms: [