Did Swamp Dragon last night. Grp was warrior (13k hp's), cleric, bard(me), mage, druid, paladin. Wipe at 40%, couldn't get slow to land.
Second try same warrior, 2 clerics, bard, mage, druid, paladin, wipe at 18%, flurry killed tank because once again I couldnt keep it slowed.
Third try was enchanter, 2 clerics, tank, bard, mage, druid, paladin, fight was easy. Clerics ended fight with over 60m.
525 all resists and I only resisted the AoE once or twice. My advice for people trying this fight is to make sure to bring a real slower, even with HoS and malos on, slow landed like once every 15 tries. With slow hes cake, tank didnt drop below 50% at all.
Might be trying Mountain dragon tonight :)