I’ve given this a second go to see if there was anything I was leaving out. Overhauled the devotion set-up to give me Tree of Life to heal my pets, different equipment to better emphasize Vitality damage. It doesn’t help. For sure, they can more easily beat vanilla Nemeses like Fabius, but Corrupted Nymphs simply don’t do enough damage against the new Nemeses like Kaisan before he simply wipes the field. I tried SR65 five times and failed all of them, with some of the runs dying in the exploration shards due to the placement of Diablo Nemeses (which are on a completely different level from Grim Dawn Nemeses, so take all my problems above and raise it even more).
My suggestion - since the weapon is gearing towards Corrupted Nymph where Nature class has no Vitality RR - is either remove the -50% total damage mod all together or give the Corrupted Nymph transmuter a chock full of flat Vitality damage as Nature already has a +Crit and +Total Damage Modifier buff for the Sylvan already.
I’ve tried a few dummy tests to see how much damage the Nymphs are doing. The highest damage I’ve seen was around 2.5 crits for only 8K damage. That’s Skeleton-level damage, and you don’t have the excuse that you’re using 10-12 of them. Sylvan Nymph damage needs to be upped significantly.
Out of the GQ pet builds I’ve tried, Nature Wolves are OP with the new GQ set, Nymphs are too weak, Force of Nature is great. Spirit pets are pathetic with the exception of the Outsider and maybe Bone Fiend, if I’m being generous. Earth’s Core Dweller and Storm’s Winter Sprite work surprisingly well paired together, but having tried it in SR, the same problem applies: you have no way to keep your pets from dying, and you end up having available to you 2% of your DPS at least 50% of the time because the multiple bosses gimp your pets before they can do anything. Dream pet I’m not optimistic on in terms of how much damage it does, but the Master Mind buff is really nice now.
I’ll make sure to post the builds in my Compendium so you can see where the pets shine and where they’re lacking.