I tried it a few times over the past year but failed. We freeze and break it into small ooze and nuke them after but then we keep getting damaged from something until we wipe.
So anyone successfully killed it. How did you do it?
It's mechanically hard boss, I suggest you read on wowpedia/wowwiki on what to do after, it's not just nuking him, he has some **** that damages probably but nobody knows what. Also why do him? It's not really important boss. Also he might be bugged, who knows.