Burst Weapons - how do they work now ?


Magic Items


In the past, the Official 3.5 FAQ said that the extra damage from 'burst' weapons was activated every time a critical hit was scored and confirmed, even if the creature was immune to critical hits (it was reasonable - the creature is immune to the extra damage from the critical hit, not to the energy damage 'triggered' by the critical hit itself)
More recently, however, the last version of the Official 3.5 FAQ changed this, saying that the 'trigger' of the burst is the DAMAGE that the creature takes, not the d20 roll (and so, a creature immune to critical hits does not take the extra damage UNLESS the bonus specifically says so - like some bonuses in the Magic Item Compendium splatbook).

So, my question is, how burst weapons work now in Pathfinder? Do they actually have to damage a creature with extra-damage from critical hits in order to activate their burst ability (and so, work only with creatures vulnerable to critical hits)? Or is sufficient to score a critical and then confirm it in order to activate the extra Energy damage they would deal (and so, affect even creatures immune to critical hits, since you can score and confirm a critical even to such creatures - only thing, you normally cannot add the additional critical damage to them) ?

Paizo Employee Director of Games

Since most creatures are no longer immune to crits, this is less of an issue. I think we are going to say that the burst triggers on a critical hit, period, regardless of the creature struck and just stick with that, no exceptions.

Sometimes simpler is best.

Jason Bulmahn
Lead Designer
Paizo Publishing

RPG Superstar 2008 Top 32

Jason Bulmahn wrote:

I think we are going to say that the burst triggers on a critical hit, period, regardless of the creature struck and just stick with that, no exceptions.

This is good for many reasons. It's mechanically simpler, and it means that characters with Burst weapons still have a reason to be excited at that 20 even when fighting something immune to crits.


Jason Bulmahn wrote:
Since most creatures are no longer immune to crits, this is less of an issue.

Bit OT: Doh! Last I knew was that precision damage now applies to all creatures with discernible anatomy. Is a critical hits bonus damage considered precision damage or did I miss some other rule change?

Scarab Sages

Agreed, great question Wraith, great answer Jason! Thanks.

Now, we just need to know what creatures are actually fully immune to criticals.

I do it with a knowledge check currently, to access the vulnerable point for rogues.

There's no hardline definition in the box, will this be included in the Bestiary or in the Official release?

Sovereign Court RPG Superstar 2013 Top 4, RPG Superstar 2011 Top 16

Pathfinder X wrote:

Agreed, great question Wraith, great answer Jason! Thanks.

Now, we just need to know what creatures are actually fully immune to criticals.

I do it with a knowledge check currently, to access the vulnerable point for rogues.

There's no hardline definition in the box, will this be included in the Bestiary or in the Official release?

My guesses are oozes and incorporeal undead...

Scarab Sages

primemover003 wrote:
Pathfinder X wrote:

Agreed, great question Wraith, great answer Jason! Thanks.

Now, we just need to know what creatures are actually fully immune to criticals.

I do it with a knowledge check currently, to access the vulnerable point for rogues.

There's no hardline definition in the box, will this be included in the Bestiary or in the Official release?

My guesses are oozes and incorporeal undead...

What about a Shambling mound? A roper? I'd just like a list of stuff that is immune, though with certain things, I prefer the Knowledge check for 2 reasons...1 it makes knowledge skills important, a skill that is overlooked too often. (example: The cleric makes his knowledge religion check and shouts, "Remove the zombie's heads!"). 2. It resolves what are and what AREN't immune to criticals.

Paizo Employee Director of Games

primemover003 wrote:
Pathfinder X wrote:

Agreed, great question Wraith, great answer Jason! Thanks.

Now, we just need to know what creatures are actually fully immune to criticals.

I do it with a knowledge check currently, to access the vulnerable point for rogues.

There's no hardline definition in the box, will this be included in the Bestiary or in the Official release?

My guesses are oozes and incorporeal undead...

You are very close to the list.. there are some other exceptions.. but they are by no means common.

Jason Bulmahn
Lead Designer
Paizo Publishing

Scarab Sages

Jason, so where will the list be? Thank you!


I think there needs to be a quick clear clarification made.

Jason - by "burst activates on every critical hit, regardless of creature struck", do you mean

a) Every time a threat roll (that would hit), is confirmed, the burst activates.

or b) Every time a creature suffers a critical hit from your weapon, the burst activates.

(Hoping the former).

As a side note, late changes to the 3.5 SRD FAQ were due to the new "sage", and frankly aren't reliable for good advice.


Pathfinder Maps, Pathfinder Accessories Subscriber; Pathfinder Roleplaying Game Charter Superscriber; Starfinder Charter Superscriber

There is a need to define the "Sneak Attack" sidebar more precisely. Currently, as written, the rule applies to sneak damage only. It needs to be stated that it also applies to critical hits, as Jason's post in this thread seems to indicate. It might also be useful to indicate if this rule also extends to other kinds of damages, even if these might be from closed sources. WotC used the term "precision damage" to encompass sneak, skirmish (scout) and sudden strike (ninja). Something similar should be done here to make this rule less ambiguous.

Even more ambiguity can be eliminated by indicating that creatures are immune to sneak attacks/critical hits/precision damage by stating it explicitly in their Bestiary description with a special ability.


Jason Bulmahn wrote:
Since most creatures are no longer immune to crits

When did that happen? Not that I don't welcome it. I just didn't know it was official.

Paizo Employee Director of Games

KaeYoss wrote:
Jason Bulmahn wrote:
Since most creatures are no longer immune to crits
When did that happen? Not that I don't welcome it. I just didn't know it was official.

That is a change that I have always thought was in the rules, but it turns out that it is not really explicitly stated anywhere.

So.. here ya go...

Most creatures are no longer immune to critical hits or precision based damage. Those that are immune to one, are usually immune to both. The bestiary will clear up a lot of this confusion.

Jason Bulmahn
Lead Designer
Paizo Publishing


Pathfinder Maps, Pathfinder Accessories Subscriber; Pathfinder Roleplaying Game Charter Superscriber; Starfinder Charter Superscriber
Jason Bulmahn wrote:

That is a change that I have always thought was in the rules, but it turns out that it is not really explicitly stated anywhere.

So.. here ya go...

Most creatures are no longer immune to critical hits or precision based damage. Those that are immune to one, are usually immune to both. The bestiary will clear up a lot of this confusion.

Jason Bulmahn
Lead Designer
Paizo Publishing

Thanks for clearing that up!

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