Just did the below strategy. Hes not so rough once you get him out of the hell hole he burys himself in. Had to sleepga1/Sleepga2 all the surrounding mobs to get him out by himself. Sleep2 him at zone and zone out. Come back in sleep/nuke.
Silence him before he wakes up. Curaga4 / CureV made this a 30 minute fight.
Also Aspired him out of MP at the end.
Sleep/nuke is a glorious tactic.