I am not sure if this is a bug, or was done by design. I went into Hill Giants lair and we doing well through the entrance, then getting to the first chamber spawned two hill giant Berserkers along with what I normally spawn. The Hill Giant Ju-JU seemed to have unlimited supply of Cure Critical potions. After much difficulty I went on to th next chamber. Thinking possibly a DM was putting in a little extra challenge, I went on to the next chamber. There to my joy I not only spawned 5 Hilly Berserkers, but 4 Ju-Ju-'s as well. Needless to say, I was soon respawning.