Progression
Tier 1
Tomb of Thuuga • Tariza the Widow Mistress
Execution Throne Room • Pawbuster
The Protector's Realm • Iztapa Vyx • Wymbulu Vyx • Zykluk Vyx • Adkar Vyx • Doomcoil • Ludmila & Co. • Imzok's Revenge
Tier 2
Venril Sathir's Lair • Venril Sathir
Temple of Kor-Sha • Uzdrak the Invincible • Aktar & Uthtak • Atrebe's Statue • Kodux & Zarda • Selrach Di'Zok the Overking
Tier 3
Chamber of Destiny • The Leviathan
Tier 4
Veeshan's Peak • Kluzen the Protector • Elder Ekron • Nexona • Druushk • Taskmaster Nichok • Milyex Vioren • Qunard Ashenclaw • Xygoz • Hoshkar • Travenro the Skygazer • Silverwing • Phara Dar
Trakanon's Lair • Trakanon
Shard of Hate • Dreadlord D`Somni • Master P`Tasa • Demetrius Crane • Malevolence & Ire • Kpul D`Vingur • Byzola