To do harder instances, each expansion of World of Warcraft has different tools, Classic WoW had Upper Blackrock Spire, Burning Crusade had Karazhan, and Wrath of the Lich King has Naxxramas. This passage i wanna talk about the tools for Wrath of the Lich king. Things you need to know are as follows:

1. Hit level 80. You can only come into Naxxramas until you level 80. Naxxramas presents some very real challenges, not the least of which is gear. You must have a decent gear level and skills to enter Naxxramas and walk out alive.

2. Make yourself familiar with your class. While recent nerfs to the game have made raiding easier than ever for casual players, it is still very important to know your class well before you enter a raid such as Naxxramas.

3. Gear up. You can't just hit level 80 and expect to get invited to a Naxxramas run. While you will probably have run some instances before you hit level 80, you will need a minimum level of gear to run Naxxramas successfully. This varies by class, but running at least a few higher-level instances such as Halls of Lightning and Caverns of Time: Culling of Stratholme is strongly recommended.

4. Run some Heroics. Heroic-difficulty instances makes realities of raiding to you, at the same time, they will get you a lot of good loot. While being decked out in Heroic gear is not a prerequisite for a successful Naxx run, it goes a long way toward making raids less painful.

5. Do your homework. Raiding is quite a bit different from normal instancing. Boss fights are more complex and require a greater degree of teamwork and situational awareness. Knowing where you are and where you should be is absolutely essential. Researching boss fights before you go is also very important to ensure you are being as beneficial to the raid as possible. Many of the bosses in Naxxramas have complex strategies that are difficult to learn simply by reading about them or being told about them. Specifically, Heigan the Unclean, has a dance that must be performed exactly if you wish to survive the fight.

6. Be prepared. Make sure your gear is repaired, you're stocked on consumables and that you are on-time. Simply being read to go at the appointed time goes a long way toward a successful raid.

Get prepared now? Go for your harder instances now.

Source: www.wowruler.com