Monster- Qiraji Gladiator
Area- Ruins of Ahn'Qiraj, Silithus
Instructions- Enter AQ20 and navigate past the second boss, General Rajaxx, without killing him. The monsters named Qiraji Gladiator can be killed in single or double pulls and respawn after ~5 seconds.
Relevance- This can be used to level characters and farm items (scarab coffer key). This would be especially useful for botting unnoticed.