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Diablo Wiki
Diablo Wiki
Chaos Sanctuary
Chaos Sanctuary (Diablo II).jpg
Act Act IV
Waypoint No
Golden Chest No
Super Unique Grand Vizier of Chaos, Infector of Souls, Lord De Seis, Diablo
Quests Terror's End
NPCs {{{NPCs}}}
Music Diablo
Area Level
Normal Nightmare Hell
Level 1 28 58 85
Level 2 {{{Level2}}} {{{Level2N}}} {{{Level2H}}}
Level 3 {{{Level3}}} {{{Level3N}}} {{{Level3H}}}
Level 4 {{{Level4}}} {{{Level4N}}} {{{Level4H}}}
Level 5 {{{Level5}}} {{{Level5N}}} {{{Level5H}}}
Relative Area Size
Normal Nightmare Hell
Level 1 1 1 1
Level 2 {{{Size2}}} {{{Size2N}}} {{{Size2H}}}
Level 3 {{{Size3}}} {{{Size3N}}} {{{Size3H}}}
Level 4 {{{Size4}}} {{{Size4N}}} {{{Size4H}}}
Level 5 {{{Size5}}} {{{Size5N}}} {{{Size5H}}}
"Proceed hero, into Terror's lair. Know that Diablo's innermost sanctum is hidden by five seals. Only by opening each of these five seals, can you clear your way to the final battle." - Hadriel

The Chaos Sanctuary, also referred to as Terror's Lair by Hadriel, is the unholy cathedral of the Lord of Terror himself. Inside the Sanctuary, Diablo is hidden in his innermost sanctum. This sanctum is hidden by five seals which must all be opened in order to reveal Diablo himself. This particular function likely has nothing to do with lore and all to do with game mechanics, forcing the player to defeat three mini-bosses before fighting the original last boss of Diablo II.

Three of the five seals release a Super unique monster with a group of boosted minions. These are:

When all three super uniques are dead and the last seal is opened, all other monster in the sanctuary automatically die as Diablo makes his appearance.


Monster Immunity Additional
Normal Nightmare Hell
Doom Knight (Diablo II).gif
Doom Knight
- - Fire
Oblivion Knight (Diablo II).gif
Oblivion Knight
- - Cold
Storm Caster (Diablo II).gif
Storm Caster
- - Lightning
Venom Lord (Diablo II).gif
Venom Lord
- Poison Fire
Grand Vizier of Chaos (Diablo II).gif
Grand Vizier of Chaos
- - Lightning
Super Unique
Infector of Souls (Diablo II).gif
Infector of Souls
- Poison Fire
Super Unique
Lord de Seis (Diablo II).gif
Lord De Seis
- - Cold
Super Unique
Diablo (Diablo II).gif
- - -
Super Unique