Excuse the double post, but heres a few bits to help finish up 1st boss so we can move on to 2nd, so on:
-On easy/normal every person in the party (not recommended) can grab a torch. In Hard mode, only 4 torches will be available, so make sure only those who are designated to do the candle lighting grab the torches.
-Flint is at the left candle nearest the boss, we usually designate the priest (group heal hits the candle lighters if spaced correctly) to flint, has been done with a dps/tank flinting as well. Your preference.
-When the the 4 designated lighters have oil, it is important they do *not* stack on the flint, rather be spaced a little (think of the "5" side of a dice) so arrows do not crossover and stack, which is almost an insta-kill
-After each time the room lights up, and before the room goes dark again (20% intervals) theres a chance she'll shoot a debuff at random members of the party. The name escapes me, but looks like fireballs shooting out of the boss and to the targetted members, and must be cleansed by a priest or druid's Purify, or a d/s Group Exorcism. If not cleansed or healed through, after a few seconds the affected person will die. Caking neglects dmg.
-To cleanse the debuff using druids, we have everyone run to the druid for aoe cleanse, then back to torch lighting. Recommended for both normal/hard as stacking on the tank or a gathering where traffic is can cause a wipe due to arrows stacking/overlapping.
-Boss despawns fairly quickly, so loot up
My recommended group setup (normal):
1 Priest (or another druid)
1 Druid/Scout
1 Tank (k/s, k/p, k/w, wd/w, w/k have all tanked this in my experience)
3 dps (any combo, this fight is very light on dps)
Hard mode:
2 priests
2 druids/scouts (Group Exorcism)
1 tank
7 dps
***The above is just from my experience, what I'm comfortable running with, and what has worked out with who I have ran so far.***