In Burning Crusade Classic, many instances are locked if you don't complete certain quests or increase your reputation with certain factions. These locked instances also prevent you from accessing the later raids in the expansion.
In this guide, we'll walk you through how to access the Coilfang Reservoir instances on Heroic difficulty once you reach level 70 -- The Slave Pens, The Underbog, and The Steamvault.
Important: All players in the group must have the Reservoir Key to access any of these instances in Heroic Difficulty. If one of the player doesn't have it, they will be left at the entrance.
To access the Heroic Difficulty of the instances mentioned above, you must have the Reservoir Key sold by Fedryen Swiftspear at the Cenarion Expedition, in Zangarmarsh.
However, in order to obtain this key, you must reach Revered reputation with the Cenarion Expedition.
To reach this level of reputation quickly, we strongly recommend that you farm The Underbog during your leveling from around 62-64 — which should guarantee you Honored — and then complete all the quests in Zangarmarsh once you reach Level 70.
This not only maximizes your reputation gain as you level up, but also increases the amount of gold generated at Level 70 since you earn extra gold instead of XP when you complete quests at max level.
Gruul's Lair is a World of Warcraft: Burning Crusade Classic Phase 1 raid. It can be found in Hellfire Peninsula, and is made up of two bosses. Our raid guide helps you take them down as swiftly as possible.
