Conned yellow to me as a 64 Druid, took me about 15 mins to kill with DoTs (I'm an averagely equipped Druid), dropped nothing except about 25 plat. LOL. (Did get about 10% AA for the kill, though). They did not summon nor cast any spells.
Was camping the burly hill giants at north edge of steppes and 'a hill giant' was at entrance to the cave there. Killed a good 40 burleys and then on this 'a hill giant' dropped the 'Muddy Royal Scroll' for the charm of lore quest.