I tried to take this guy out 3 times, and it was a no go.  Because reasons:

50k obliterates, really?  Then I waited with Burstdatzz (SilentStorm, who was a druid I met when causing wpvp in Elwynn Forest I believe) and we had to 2v1 him, which prompted this message

Ya rilly.  He did all that damage through survival instincts and incarnation too. Sigh.