Vulnerability Stack Bug for DoTs


Something that I noticed while creating a assassin that primarily does poison damage, is that general vulnerability and physical vulnerability stacks do not stack with each other and further increase the poison damage done on any enemies that I hit. Each vulnerability type seems to work independently, just not together. Essentially an enemy that has 10 general vulnerability stacks will take the same amount of damage as the same type of enemy that has 10 physical vulnerability stacks or both 10 general and 10 physical vulnerability stacks. 

Testing this on my other assassin that does flat heat damage, she did significantly more damage against enemies using both 10 stacks of general and 10 stacks of heat vulnerability than she did using just 10 stacks of either vulnerability separately, all other things being equal. 

The only variable between the two of them which may be affecting this might be the psalm code doctrine [vulnerability stacks are +300% more effective for DoT effects]. The doctrine seems to work, but I'm not sure if it bugged in such a way to cause the different vulnerability stacking problems that I'm experiencing. I've tried playing without the doctrine, but the results have been inconsistent so far. If anybody knows anything about this, feel free to post about it. 

EDIT/SUMMARY: Vulnerabilities are not meant to stack with each other, but still count as separate debuff stacks for the use of other abilities. 

This post was edited 312 days ago by Sir Billiam
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Vulnerability Stack Bug for DoTs
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312 days ago
Sir Billiam
They do count as separate, yes.
313 days ago

Huh. I didn't know that; I always thought it did. Thanks for letting me know.

Another question then: Does having stacks of multiple types of vulnerability (general, heat, physical, warp) count as separate debuffs then? I use that on another character for stacking damage from the debuffs skill tree ability, dirty fighting, (+5% damage per every debuff on the target), and for stacking health regeneration from the relic inoculator enchant [8 HP regeneration for every vulnerability stack inflicted]. I always thought that having 10 stacks of every vulnerability type, would mean a 40x multiplier for those respective abilities (5% x 40 = 200% bonus damage, and 8 x 40 =  320 HP regenerated per second). Could you let me know if this works how I'm thinking it does. If I'm wrong, I'm going to be changing a couple of builds.

313 days ago
Hey there :) general vulnerability doesn't stack with other types of vulnerabilities by design.