Team: W (me as Obs Tank), E/A (SF w/ swap), Sousuke (SF), VEkk (SF), R (Conjure Barrage), R (Splinter Barrage), Mo (HB), Ogden (ZB Bonder)
We defeated Duncan in hard mode last night. It was a pretty straight forward run but we did run into trouble a few times. Our monk runs Duncan a lot so he knows the popups and the groups but when it came to Duncan we didn’t have the normal build (SV necro instead of extra ranger) so we had to fend for ourselves.
First, we swapped the spirits out of the way. From then on out it was as follows: pain inverter him and then continually beat on him while his spirit rifts were doing damage back to him. I left off obsidian flesh so that he would cast on me and not the rest of the party as much as possible. 
At the end of the dungeon, I had the great pleasure of seeing Kousei’s name announced for gaining the Legendary Master of the North title!
Congrats! I have a long way to go yet for LMoN. I have several friends who are familiar with it though, so it shouldn’t pose too much of a problem when the time comes.
Let me know if you need any help!