Is there a maximum number of elemental effects I can (practically) stack in Borderlands 2, or can I keep stacking them on as long as my rate of fire, elemental effect chance and Damage over Time duration permits? I know for example more than one stack can affect a target; you can tell as more and more numbers jump off a target indicating DOT as you add more stacks, but there's otherwise no visual indicator.

For some math I've got a nearly 50% chance of inflicting Corrosion (10% chance on gun, 30% additive boost to that percentage from Siren skills, 6.some% chance from Badass rank) on an 8.0 rate of fire SMG. I've got 8 seconds before the first stack runs out. Assuming 50% chance per bullet times 8 for 8 seconds I could get around 32 stacks on one target in 8 seconds for an extremely brief period of time. Is that doable or is there a lower limit for elemental DoT stacks?

I am asking how many stacks can be on a target at once. I am not asking how to calculate my chance of causing an elemental effect.

  • Related/duplicate: gaming.stackexchange.com/questions/85736/…
    – Hex
    Sep 26, 2012 at 13:21
  • 2
    @Hex doesn't really answer my question though; I know they stack, I want to know if there's a limit to how many I can paint on one target at a time
    – Ben Brocka
    Sep 26, 2012 at 13:27
  • fair enough, just related then :)
    – Hex
    Sep 26, 2012 at 13:31
  • 1
    Small failure: you don't get +30% chance to trigger an elemental attack with a weapon by siren's talent, but a 30% HIGHER chance. Example: Your weapon indicates a 10% chance to proc fire, with the siren's talent (think it's called Flicker) you will now have 13% (0,1 + 0,3*0,1).
    – user33814
    Oct 1, 2012 at 13:24
  • Yeah, I know that, doesn't really matter though, I'm not asking about doing it with a non-elemental gun.
    – Ben Brocka
    Oct 1, 2012 at 13:32

2 Answers 2


I believe You can have 3 effects on an enemy at one time, but slag does not count towards this limit.

  • 3
    Do you have a source?
    – Sorean
    Jan 11, 2013 at 3:28
  • 1
    I'm pretty sure I've seen more than three on one. And I've definitely seen more than one stack of Fire plus multiple Corrode/Shock (Ruin + Helios alone will do this)
    – Ben Brocka
    Jan 11, 2013 at 14:46

There is no limit to how many elementals can stack. You can stack how many ever elementals you want.

You can stack all elements ie. Fire, Shock, Corrosion, Slag can all be stacked on a enemy at the same time.

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