Much shorter than Grenth’s counterpart of elite areas, the Fissure of Woe also technically has no “final boss” like the Underworld does with Dhuum. This land in mists has you trekking back and forth to different areas after you’ve taken the center temple. Afterward, Balthezar blesses you with the gift of glorious loot.
The two dungeon quests that occur in Sparkfly Swamp are basically a big parody of Red vs Blue, the machinima comedy using the Halo series. This side of the dungeon coin is easy to burn through with the more experienced of parties. No gimmick build needed for most professions.
Urgoz is a piece of cake if you bring a ranger or secondary profession ranger with Edge of Extinction and Summon Spirits. The normal enemies that spawn in the boss room are the same type of enemy as the Urgoz, dealing massive damage as you kill these pawns. You can basically ignor Urgoz himself for the most part.
The hardest thing about Dhuum is the fact that it takes HOURS just to get to him as well as the half hour to an hour it takes to kill him. You want to take along some things that daze and interrupts if you want to give your healers a break by interrupting his Judgement of Dhuum skill, which deals massive damage to everything in the room.