So just got out of an expert roulette as WHM. Got the last lvl 100 msq dungeon, which is fine. Get a first timer, which is also fine. Party comp is WAR WHM NIN RDM. Keep this in mind.
First trash goes fine, a bit slow on dps, but mobs are chonk at this level and it is a fresh release. We get to the first boss and start fighting. First frontal cleave goes out, RDM eats a vuln, panics a bit. Rear cleave goes out, everyone dodges it. Then comes the +'s and O's. RDM does not understand this mechanic despite the rest of the party running to the first safe spot, and dies to a second vuln. I raise them, and barely make the stack mechanic that comes out afterwards on me. Second round goes out, RDM dies again from going to the wrong O. I get them back up to try again, and we barely make the stack mechanic (so far it's been just me and the NIN doing the stack) though the NIN has also eaten a vuln stack.
Third round goes out, RDM dies yet again. Unfortunately because of a bad pattern and cleave combo, I end up eating dirt as WHM and end up wiping. We get back to the first boss and try again. Same thing happens. RDM does not understand mechanics, and dies repeatedly. Though the NIN seemed to be eating the same sort of stuff the RDM was on, and they both die to a third round of daisy chains, leaving me to die by stack mechanic. War presses on and eventually clears the boss. War is OP.
Second boss was almost like a repeat of the first: both of the dps were eating mechanics. It was clear the NIN was somewhat learning but heavily greeding; but the RDM just kept...not doing mechanics. Even a Rescue to pull them over to the safe side caused them to run back into the bad after it went off. Like learning mechanics and seeing how it afflicts you with status ailments should be a sign you should not get hit by that next time. But the RDM was just not learning. And eventually the NIN just gave up on trying to do mechanics as well.
Third boss...third boss was a mess. Both the RDM and NIN kept eating mechanics and dying, putting greater stress on myself to the point where I had zero resources left save for single target cure 2s and Medica 3s. I basically had no charges of Thin Air the entire fight because they were spent scraping the dps off the floor. RDM was STILL not learning mechanics despite the rest of us basically showing him how to do them. After the 4th rez and death each, I had to give up on the RDM and NIN and just sustain the tank. We eventually clear, minion drops, and I roll a 5. Tank rolls a 1.
The floor-tanking NIN wins the roll, pops it and says 'gg'.
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA