The Underbog is a dungeon whose entrance is located in Zangarmarsh in the World of Warcraft game. The level range for the normal dungeon is 61-70. The only achievements you can get in this dungeon are the ones for completing. There are no achievements awards for individual boss encounters for making him to do something. The instance was released in the Burning Crusade expansion. The dungeon contains 4 bosses. The end boss of The Underbog is The Black Stalker.
Running this dungeon increases your reputation for the Cenarion Expedition faction. How much you get depends on the level and the race of the character. Humans have a racial bonus of diplomacy which means they get more rep from killing and doing things than the other races.
The Underbog is the right most dungeon as you enter the area with the exit behind you. Apart from getting rep and the achievement of having completed the dungeon on heroic, there really isn't much point in running it. Individual boss achievements didn't come out until the following expansion. In addition to the Cenarion Expedition, you can gain reputation with the Sporeggar. When you are inside, keep collecting Sanguine Hibiscus as you can turn them into the Sporeggar for rep.
TomTom Location Coordinates for Entrance : /way 54,34
When you reach Hungerfen, in front of him will be to marsh monsters which you deal with before engaging the boss. The main spell that the creature does is to create toadstools that emit a dangerous gas. You need to move out of the way so that the gas no longer affects you. Once infected, you will stay infected until the effect runs out. How long the effect takes to run out depends on how long you was in the poison.
When you approach the area, the hydra Ghaz'an will be swimming in the pool and will come out and walk along the platoon to his shelf. If you don't want to engage him on the walkway, stay back until he has reached his platform area.
The boss is easy, there's no poison like the previous boss. He'll keep his focus on one player and will spit and drop saliva on those in front of him. The tank should bring a raincoat, lol with the melee and ranged at a distance. He's not a hard boss to kill so will be easy.
After you have killed the boss, walk to the edge of the platform and drop into the water below. Look for a ledge on which to climb onto to get out, walk up the slide and then drop down the other end.
Musel'ek stomps about his camp so be careful before that you don't get too close otherwise you'll end up starting it before you are ready. As the fight goes on, Musel'ek will call on his pet Claw to aid him in the fight. The bear will charge and push back the player or players if they are not careful. Take out the Bear first as when he is defeated, Claw will turn back into a Tauren.
When the Tauren has been defeated, it just you against Musel'ek in a fight to the deat. Musel'ek is a hunter and will have the same kinds of spells that a hunter has such as deterrence, multi-shot etc. He'll put a spell on you, a hunter mark that will increase his damage. The mark will go when the boss is dead.
The Black Stalker is a large marsh walker that walks round the end of dungeon room. In the room are a lot of dead insects which gives an atmosphere to the place rather than anything else. The dead don't come back to life.
One of the early spells is chain lightning which will hit the tank and then everyone else. It is the opposite to the Shaman spell Chain Healing. Other spells will include levitating a player and therefore taking him out of the fight. In addition to levitation, he'll call on adds to support him. If you are playing a high level, the adds and levitation didn't seem to happen. The adds appeared but didn't attack.
After the fight, there's a path back down to the start of the dungeon so theres no need to teleport out and back in again. At the start is the quest givers plus the Sporeggar that you hand the Hibiscus to for rep.