honestly, when i first heard of them, i just loaded up a standard 7 hero bar, turned on a movie, and just cspaced like i usually do in hm, thinking that the quest would be as easy as villany of garlath.
oh how wrong could i be...
i actually smiled when i realized my usual approach was worthless here. i am strictly against cons (except merchant stones sometimes) so i actually had to think in order to droknars forge. a few things i noticed were:
--the mesmer ai is better, for some reason. they now almost exclusively used diversion on me (the monk) or my n/rt healer.
--however, the warrior ai is woefully inadequate. i generally left them and the necros alive last because they did the least damage as the warriors focused on minions and spirits.
--those monks are some of the most annoying mobs you will fight. if you get 2+ alive at a time, with some other enemies still up, that fight gets significantly harder as the monks never seem to run out of energy.
--the frost titans were priority targets. they did craploads of aoe damage, and raped my shelter spirit, and when they died they spawned icy brutes and titans malice. the next priority were the mesmers, and then the monks.
--i know this sounds simple, but flagging is super important here. i havent had to flag my heroes at all since like kathandrax hm, so at first i found it annoying, but soon it became a second nature. heroes are idiots, and panic destroys them.
--my party wiped twice during the entire run, and both times were due to overaggro. the mobs can get pretty close together, and the titan hearts in particular have a large wander range. so be sure to pull farther than you usually do. i learned that one the hard way
in the end, droknars forge was a great challenge, and i liked the rewards, so i cant wait to do the rest
UPDATE: The Denravi one was easy, did it on my first try, but then i got to north kryta province...
i really dont want to use cons or a eight man party, because they make me feel like im cheating

, but i think i might have to. the second wave at the ascalon settlement ruins me. at that point i flag razah back and just make him focus on using st and shelter, and i kicked my mm because the minions waste mah precious uses of shelter, but poor razah cant keep up with all the damage, even with soul twisting. after 1.5 hours of trying, i finally got to the end, but captain greywind leeroyed into a bunch of traps, and died before i could react.
ive decided i am going to bring back my mm, and put winter on razah and mantra of frost on everyone else for a quasi frostway. any tips? that quest is killing me.