⚠️ Please see plans to display ads on bg3.wiki. ⚠️


From bg3.wiki
Jump to navigation Jump to search
Contagion Filth Fever.webp

Contagion is a level 5 necromancy spell. This spell allows spellcasters to infect their target with an affliction of their choosing, potentially resulting in the target contracting a disease.


Poison a target and possibly afflict them with a disease of your choice.

Once infected, the target will roll a Constitution Saving throw each turn. If it accumulates 3 successes, it recovers. If it accumulates 3 failures, it contracts the Disease chosen by the spellcaster.


Action + Level 5 Spell Slot
Attack roll
CON Save
 Melee: 1.5 m / 5  ft

At higher levels

Casting this spell at a higher level grants no additional benefit.


Condition: Contagion Poisoned

Contagion Poisoned Contagion Poisoned

Constitution saving throw

  • Has Disadvantage Icon.png Disadvantage on Attack rolls and Checks.
  • Each turn, it must succeed on a Saving throw, or the Poison will advance in stage. On 3 successes, it recovers. On 3 failures, it contracts the Disease corresponding to the variant of the spell Contagion that was cast.

How to learn



  • The description of the spell is misleading, if the target fails 3 Saving Throws, the disease persists after a long rest, essentially forever, or until the target gets healed by Lesser Restoration Lesser Restoration or something similar.
  • Casting Contagion outside of battle onto any NPC is not considered an aggressive action.
  • Missing the attack roll when casting the spell, on the other hand, is considered an aggressive action and might turn NPCs hostile.
  • However, if an NPC is afflicted with Contagion: Mindfire Contagion: Mindfire and fails the 3 Saving Throws, it will turn hostile permanently. Killing an NPC in this way is not considered a crime.
  • Furthermore, even though successfully casting Contagion on an NPC will not turn it hostile, if it's a key quest NPC, casting on it might update the related quest, turning it hostile regardless.

External Links[edit | edit source]