Except Ochain is the hardest Emp in the game to make next to the Harp, the PLD has to be geared fairly well I would think, and probably isn't procing many if any mobs. If they arnt procing them then honestly you would need to throw in WAR as well with Fell Cleave as I'm sure a PDT WAR & a PDT RDM could do that without any problem at all, simply FC the same as you would in Abyssea with more PDT to make up for not having atma.

Come to think of it a smart FC group could probably FC Dyna... RDM spam diaga for procs in magic time, WAR spam FC for WS time, have WAR and RDM /DNC for when JA time comes. All would be somewhat fast depending on luck of procs and you could move between 2~3 types of mobs due to the small distance between mobs in Dynamis.