Also, Kinem, RE: your IC post - after DR/Resistances, Carl has actually dealt this thing more damage than anyone else,
and as for the 'unable to catch it', you go after darius, so would see the solid fog being cast in front of it to slow its retreat.
That having been said, I'll be updating the IC thread right now, if you wish to change Carls actions, please feel free to do so, and I'll fix the post. Otherwise, just keep going with what you're doing.