- "There is a putrid stench of death and despair wafting in the air. Bile is creeping up your throat. Your stomach turns sour and you cannot stay long."
Bubos reduces boss HP. The HP reduction of bosses goes toward 50%, and is a logarithmic growth.
Bubos's summon cost is the player's current summon cost.
Bubos's cost per level is 2n, with n being equal to the next level.
All costs except the summon cost can be reduced by Chor'gorloth.
The bosses' HP reduction follows the equation:
-% HP of bosses = 50×(1-e-0.02n)
- Bubos, Ancient of Diseases, is a reference to the Bubonic plague.
- Prior to patch 0.14, there was a bug that caused Bubos to give double his described effect.
- Bubos effectively maxes out at level 1872.