Wow. I'm going to assume you used EM to beat the goo and then just owned Bjorn with glyphs+ward+whatever boons you had taken (maybe a reflexes?). Berserker Camp really is a ridiculously easy hard dungeon.
Yup, EM for Goo, then Bjorn just dropped dead. Nothing special, just two regular hits, two fireballs, and a DP finisher. In hindsight, I could have easily gotten specialist by just using the ward again instead of the fireballs.