My LS has attempted to pop Ix'DRK on several occasions. We've read about tons of ideas/theories about popping him, and we've tried everything. We tried having a BLM get every single kill shot. We tried spamming the ??? after each Aern kill. We tried having a single person solo all the aerns in the room with ???. We have yet to see the message.
I have personally seen the message while Manaburning in the areas on one of the BLMs who had infact killed the Aern that gave the message. But there were only 3 BLMs and a BRD in the party, so I'm not sure if theres a difference between that and farming it with an alliance?
If anyone can describe their methods on farming Ix'DRK or theories you've proven to be true, please reply. Thanks in advance.