These things hit hard on us DRKs! I'm a level 68 DRK and i get hit around 30-120 each hit! (the higher dmg is usually crits though.) Watch out if your soloing these.
Now at 73, they hit 10-45 regular hits. They do around 45-50 criticals and their skills do about 15-30.
Farmed them for a few hours, probably coulda made more gil farming something else for a few hours but the Mythril Ore, Golem Shards, and Light Crystals were pretty much worth it.
Stoneskin + Refresh + Haste + Sleep II + Paralyze + Slow + Blind + Gravity + Dia II
Fight 2 or 3 straight doing that, then Convert and start all over again. Easiest fights... sometimes, I walk away for the 3 mins to do something, come back, do a WS, and finish the Mob off....
EASILY?? I'd say 58-60. I am a 61 Thf and can solo em pretty easy. When I say easy I mean fight 4-5 of em before resting. Of course I evade almost 90% of their attacks so that helps a lot.