I actually hadn't purchased any army packs until September of this year. But all my posts about expansion units have been theoretical because those packs were for Christmas. My family opened some early presents this morning and I opened my army packs. Tonight I got a game in against a new player (a cousin-in-law). He played Undead and I played Uthuk. I was so excited to finally use Blood Sisters and Grotesques (I had been eyeing them for years, but kept spending money on X-Wing instead.
I really like the Blood Sisters. In my game they were phenomenal. They did more than the Necromancers! Now I'm sure that's at least partially due to dice variance, but I look forward to fielding more of them. They may not be as far beneath the curve as I had thought.
I expected Grotesques to be mediocre and I wasn't disappointed. They bled a few units but were otherwise unremarkable.
Berserkers are awesome! And oh shoot, as I write this I realize I only put 3 figures in each unit instead of 4. Oh well. They were still stars. My favorite part was when I had a 2-health Berserkers unit between full-health Reanimates on a VP, and a 1-health Barghests unit in a forest. The Reanimates attacked and my Bone Spurs brought it down to 1 figure. I countered and rerolled into 2 heroic results, allowing me to eliminate both adjacent units. That felt really good!