My LS called me out a few nights ago to help with this nm.
At first they where Pld Whm Cor Sam. They said they tried twice but ended up wiping.
With 5 we just barely survived as Pld Whm Cor Sam and Bst (me). It was a great tough battle for us. Near the end the pld died. My fungar me and the sam switch tanked successfully for a few.
Ultimately the Whm also died. To keep the Sam around longer I Divine sealed Cured him and took a death. It was enough for the Sam to finish him off though. I think the sam and cor were in the deep red. I think it was the closest battle I have ever seen in the game.
Got the Pld and spiffy item though.
WIkiFFXI says you need a pt of 6 with a nin tank. I’m Happy to say that is not needed.