Infinite Spawn Gold-Farming, Leveling Method, WOTLK Classic (Patreon)

The Auchenai Crypts dungeon in Terrokar Forest contains several types of NPC, the Auchenai Soulpriest and the Auchenai Vindicator, who, when attacked, produce another npc called "Unliving" Cleric/Sorcerer/Soldier/Stalker. 

These Unliving mobs have normal loot drops when killed, including world drops for epic items.

The following strategy will enable you to create and loot these mobs indefinitely:

1. Kill approximately half the Vindicators and Soulpriests in the chamber near the instance entrance. Unless you have superb gear you probably want to kill one at a time. Run out of the instance if you pull too many mobs doing this.

2. You can now aggro all the Vindators and Soulpriests you can manage and trigger their "Unliving" mob spawns. Kill the Unliving mobs only.

3. Loot the Unliving mobs, run out of the exit portal or otherwise reset combat. 

4. Repeat from 2. 

You can use this strategy to farm gold or level within the appropriate bracket at your own pace, since the spawn rate is entirely under your control. You never have to worry about instance lock as we never need to reset the dungeon.

Patreons with good memories will remember I made a youtube video about this strategy on retail wow some time ago. The method was fixed on retail but surprisingly works on classic now our gear level is strong enough to do this solo. 

For retail players: worth mentioning that death knights can still level very fast here, as the mind control some of the mobs use allows the death knight to enslave multiple minions with "control undead". The unliving mobs have very powerful auras and abilities which can allow the death knight to solo the dungeon easily.