I tested a Claws/Regen and Katana/Regen on Beta, and I too found the changes to be a great improvement. I don’t have strong opinions about the power progression in Regen, but I can say that the key to survival for me was to 6-slot Reconstruction, Second Wind, and MoG and 2-slot Hasten to keep SW up all the time.
Fighting against large mobs of -Def enemies like Warriors in the new KW story arc (and Banished Pantheon Shamans) will drop your defense into -70% range so you’ll get hit a lot. I light off Second Wind immediately to keep it up and going all the time for the HP boost (I don’t use it as a heal).
If I get overwhelmed, I hit MoG. There’s no crash and it caps your resists (for 15 seconds) and gives you +120% Defense if it is 6-slotted with a good set (like Reactive Defenses). Recon is there as an oh-crap power, but I could solo x8 missions without much trouble. I found that I used MoG a good bit when I soloed the new Khalisti Wharf Warrior missions because of the -Def cascading death spiral.
Honestly, the new changes make Regen play kind of edgy, which I like. I’m a huge SR fan and it has the same feel of “I’m freakin’ invincible” and then WHAM! You just have to be disciplined to reactivate Second Wind every two minutes and be ready to hit MoG when you’re getting overwhelmed.
I attached my enhancement slotting for reference.
