Similar to all the different raids in WoW Classic from lidakun's blog

Similar to all the different raids in WoW Classic, you’ll first want to complete an attunement quest before you're capable of WOW Classic Boosting step foot into Naxxramas. The excellent news is that this is one of the most effective attunement quests determined in the game. The terrible news is that it may get quite high priced in case you don’t have sufficient popularity with the Argent Dawn.

In order to pick up the attunement quest, known as The Dread Citadel – Naxxramas – you may want to be as a minimum Honored with the faction. Meanwhile, completing the search requires you to turn in numerous amounts of gold and materials to Archmage Angela Dosantos at Light’s Hope Chapel in Eastern Plaguelands. Down underneath is mmobc.com a breakdown of the gold and materials wished depending in your standing with the Argent Dawn.