Aethusa's Prison

Level 16Hazard (Complex)
HazardUniqueLargeRemaster
AC
39
HP
106
Speed
0 ft.
Perception
+0
Fort
+33
Ref
+25
Will
+0
Stealth
+32
Recall Knowledge DC 45 (arcana)
Disable DC 42 nature (legendary) or DC 45 crafting (master) to remove an immunity the prison currently has to one of the following damage types: acid, cold, electricity, or fire (this effect lasts until the prison uses its Energy Immunity reaction to regain that immunity); DC 42 arcana (master) to fortify the pedestal's containment runes, preventing the prison from using its Chromatic Eruption action for 1 round and causing it to suffer feedback that inflicts 20[untyped] damage (this damage bypasses the prison's hardness and immunities); DC 42 thievery (master) or Dispel Magic (8th rank; counteract DC 34) to suppress the pedestal's containment runes for 1 round, preventing the prison from using its Self-Repair action and causing it to suffer feedback that inflicts 20[untyped] damage (this damage bypasses the prison's hardness and immunities). Unlike most hazards, Aethusa's prison can't be disabled, but it can be destroyed by reducing it to 0 Hit Points.

A roiling sphere of chromatic energy floats above a pedestal marked with arcane symbols.