On Wednesday I ran 8 man TFB SM on my sorc with my guild, the first attempt at terror from beyond we got his health down to 15% and then went into his tantrum, at that point he jumped up to 30% health. We ended up wiping. We regrouped and went again this time TFB didn't magically regenerate his health. We thought maybe by chance we screwed and missed something the first time.



On Thursday I took my vanguard dps into a 16 man TFB SM, the first time we attempted TFB we got him down to about 15% and TFB regenerated health to about 34%, which eventually ended up in a wipe. Our second attempt we got TFB down to about 15% again, and then health was regenerated to 30%. This time however we lucked out and killed him.



I'm inclined to say that this is a bug.