Well of Eternity is a dungeon whose entrance is located in Tanaris in the World of Warcraft game. The minimum level for this dungeon is 85. The main anagonist race in this dungeon are Night Elf. The instance was released in the Cataclysm expansion. The dungeon contains 4 bosses. The end boss of Well of Eternity is Mannoroth.
The Well of Eternity was at one time supposed to be a raid but it was downgraded to become a dungeon instead. It was one of three dungeons released just before Dragon Soul was released. In this, it doesn't matter which faction or class you are, you are transformed into a Night Elf. The setting of the dungeon is before the world broke up, before the main continent broke into four pieces, a.k.a. The Sundering.
This dungeon, you get to see Queen Azshara, the beautiful Elven queen who thirst for power was the cause of the Sundering and how she looked before she was turned into a Naga and banished to below the seas. You are not able to kill the Queen, instead you must kill her followers to get the boss encounter down.
In this dungeon, you will get help from Illidan Stormrage, the fallen Night Elf. He'll help you take out Mannorath, the Pit Lord whose blood was responsible for turning the Orcs to the Burning Legion.
Before you can take on any bosses, you need to disable the three Portals. You can do this by destroying the green crystals situated round the fighting area. Click on the crystals when you've made your way to them. If you try to go before Illidan has cleared a way for you then you'll be killed no matter what level and health you have.
Well of Eternity is heavily buggy if your character is a high level character and that you are not time-walking doing it. Its best to be avoided unless you are time-walking.
When you first enter the area to fight Mannoroth, he'll be all bones slumped in the middle of the room. They'll be three summoners and a few trash round the outside. The boss fight begins when you strike the first against the summoner. You need to kill the summoners first before Mannoroth begins to self-heal. In addition to the summoners, they'll be trash which appear during the fights which you need to take account of. For the fight, the tank needs to keep Mannoroth at the back of the room by the wall and keep him there. Over the duration of the fight, he will start to resemble the Mannoroth you fought in earlier raids, month notably the Well of Eternity. The tank needs to keep Mannoroth as close to the wall as possible. During the fight, Mannoroth will try to push people off the edge of the fight area which the players need to resist. Keeping the boss at the back will give players more space to resist being pushed off.