Using a weapon to destroy the environment?


Rules Questions

Grand Lodge

I've seen/heard people say that weapons need to be of an appropriate type to break through walls/doors/etc. Where does it say this?


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Quote:

Smashing an Object

Smashing a weapon or shield with a slashing or bludgeoning weapon is accomplished with the sunder combat maneuver (see Combat). Smashing an object is like sundering a weapon or shield, except that your combat maneuver check is opposed by the object's AC. Generally, you can smash an object only with a bludgeoning or slashing weapon.

Armor Class: Objects are easier to hit than creatures because they don't usually move, but many are tough enough to shrug off some damage from each blow. An object's Armor Class is equal to 10 + its size modifier (see Table: Size and Armor Class of Objects) + its Dexterity modifier. An inanimate object has not only a Dexterity of 0 (–5 penalty to AC), but also an additional –2 penalty to its AC. Furthermore, if you take a full-round action to line up a shot, you get an automatic hit with a melee weapon and a +5 bonus on attack rolls with a ranged weapon.

Hardness: Each object has hardness—a number that represents how well it resists damage. When an object is damaged, subtract its hardness from the damage. Only damage in excess of its hardness is deducted from the object's hit points (see Table: Common Armor, Weapon, and Shield Hardness and Hit Points, Table: Substance Hardness and Hit Points, and Table: Object Hardness and Hit Points).

Hit Points: An object's hit point total depends on what it is made of and how big it is (see Table: Common Armor, Weapon, and Shield Hardness and Hit Points, Table: Substance Hardness and Hit Points, and Table: Object Hardness and Hit Points). Objects that take damage equal to or greater than half their total hit points gain the broken condition (see Conditions). When an object's hit points reach 0, it's ruined.

Very large objects have separate hit point totals for different sections.

Energy Attacks: Energy attacks deal half damage to most objects. Divide the damage by 2 before applying the object's hardness. Some energy types might be particularly effective against certain objects, subject to GM discretion. For example, fire might do full damage against parchment, cloth, and other objects that burn easily. Sonic might do full damage against glass and crystal objects.

Ranged Weapon Damage: Objects take half damage from ranged weapons (unless the weapon is a siege engine or something similar). Divide the damage dealt by 2 before applying the object's hardness.

Ineffective Weapons: Certain weapons just can't effectively deal damage to certain objects. For example, a bludgeoning weapon cannot be used to damage a rope. Likewise, most melee weapons have little effect on stone walls and doors, unless they are designed for breaking up stone, such as a pick or hammer.

That's where the concept is derived from.


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claudekennilol wrote:
I've seen/heard people say that weapons need to be of an appropriate type to break through walls/doors/etc. Where does it say this?

Is this what you're looking for, from the CRB, Breaking and Entering

Ineffective Weapons: Certain weapons just can't effectively deal damage to certain objects. For example, a bludgeoning weapon cannot be used to damage a rope. Likewise, most melee weapons have little effect on stone walls and doors, unless they are designed for breaking up stone, such as a pick or hammer.

Edit: Ninjad by Claxon while fact checking

Grand Lodge

It's interesting that it says most weapons have little effect on doors but in the environments section it says most slashing/bludgeoning weapons work.


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claudekennilol wrote:
It's interesting that it says most weapons have little effect on doors but in the environments section it says most slashing/bludgeoning weapons work.

That's STONE doors.

I don't advise trying to carve through a stone door with your longsword.

Grand Lodge

DM_Blake wrote:
claudekennilol wrote:
It's interesting that it says most weapons have little effect on doors but in the environments section it says most slashing/bludgeoning weapons work.

That's STONE doors.

I don't advise trying to carve through a stone door with your longsword.

I suppose it can be read that way (and it probably should).

What about adamantine? If the wall has fewer hardness than what an adamantine weapon can ignore, does it still need to be an appropriately-typed weapon? (i.e. which rule is more specific)


I'd say that adamantine beats cuts the stone.


I think if a weapon is ineffective, changing what it's made from won't necessarily make it any more effective. An adamantine bludgeoning weapon won't affect a rope anymore than a steel one.

I could see exceptions being made in some circumstances though.

Grand Lodge

dragonhunterq wrote:

I think if a weapon is ineffective, changing what it's made from won't necessarily make it any more effective. An adamantine bludgeoning weapon won't affect a rope anymore than a steel one.

I could see exceptions being made in some circumstances though.

I suppose that example makes sense, but what about a sword vs a wall? If the wall's hardness is low enough the sword should still be able to slice through it.

Obviously this is a different world/universe/whatever, but Wolverine's claws cut through stone/metal/doors/walls all the time.


Adamantine weapons ignore up to 20 points of hardness, so an adamantine slashing weapon can carve through stone (hardness 8), iron (hardness 10), steel (hardness 10), and mithral (hardness 15), along with all the lesser materials I didn't mention like cloth and wood and such. The only thing adamantine weapons cannot slash through is other adamantine, or anything else that has a hardness of 20 or higher.

Nevertheless, sometimes weapons are still ineffective, like the example above with an adamantine club and rope - at the GM's discretion, of course.


I would rule that adamantine weapons can still be ineffective, reducing the damage done. A rapier, for example, might be able to punch holes in a stone wall but that will not bring the wall down any time soon.
Thats what the ineffective weapon rule is about and thats how I intend to rule it.


Just a Guess wrote:

I would rule that adamantine weapons can still be ineffective, reducing the damage done. A rapier, for example, might be able to punch holes in a stone wall but that will not bring the wall down any time soon.

Thats what the ineffective weapon rule is about and thats how I intend to rule it.

Please note that the rules say only slashing and bludgeoning weapons are generally effective at smashing objects. This mean piercing weapons, like the rapier, are kind of automatically out. Subject to GM discretion.


It's the GM's call as to what is ineffective (and just how ineffective even it might be). I personally don't buy that a bludgeoning weapon will in fact do no damage to a standard hemp rope for instance ... particularly if the rope is getting hammered between the stone pier it is anchored to and SMASH the Raging barbarian's Great Maul. I will grant his Great Axe will make much, much quicker work of it, but it isn't going to take minutes to pancake the rope either (though you might end up with stone pier rubble and a squashed rope).

Bottom line expect table variation.


Like this?

Oh, you meant dungeon construction. Can't help you much there, I typically avoid dungeons more often than not.


An adamantine slashing weapon vs a stone wall becomes somewhat effective, but would it be fully effective? I am torn. I'm with JustaGuess and an Adamantine rapier just isn't going to do anything much anytime soon.

If you don't want a binary effective/ineffective situation how about this additional guideline: If you judge an adamantine weapon as becoming more effective, but not fully effective, consider allowing it to deal damage without bypassing DR.


A sword might put a scratch in the wall, but it isn't going to be able to pry the edges of that scratch apart. Swords have thickness to them. You know those scenes in cartoons where someone slashes a sword and some object seems intact but then sheers off along a perfect mirror edge? Yeah, that doesn't really happen, especially not with a stone wall. You need to be able to lever and pry the stones apart with an appropriate tool (ie. pickaxe). By contrast, wood is much softer and more pliable, compared to stone, so your adamantine sword would have far less trouble cleaving through it. It's basically the distinction between Hardness and Strength. Diamond is hard, but at the same time fragile. You cannot scratch a diamond and a diamond can scratch anything, but if you smack a diamond with a hammer, it will shatter. A diamond can scratch a steel bar, but that steel bar wouldn't necessarily shatter if struck with a hammer. Adamantine will overcome hardness, but it can't overcome compression or tensile strength.


There should not be a blanket prohibition of damage types vs a wall. After all, what type of damage does a pick do?

Grand Lodge

Kazaan wrote:
A sword might put a scratch in the wall, but it isn't going to be able to pry the edges of that scratch apart. Swords have thickness to them. You know those scenes in cartoons where someone slashes a sword and some object seems intact but then sheers off along a perfect mirror edge? Yeah, that doesn't really happen, especially not with a stone wall. You need to be able to lever and pry the stones apart with an appropriate tool (ie. pickaxe). By contrast, wood is much softer and more pliable, compared to stone, so your adamantine sword would have far less trouble cleaving through it. It's basically the distinction between Hardness and Strength. Diamond is hard, but at the same time fragile. You cannot scratch a diamond and a diamond can scratch anything, but if you smack a diamond with a hammer, it will shatter. A diamond can scratch a steel bar, but that steel bar wouldn't necessarily shatter if struck with a hammer. Adamantine will overcome hardness, but it can't overcome compression or tensile strength.

I'm inclined to say your argument is entirely flawed as the bolded isn't defined at all for pathfinder, but there isn't enough text on the subject to say what's right and what isn't in this regard.


I would venture t say that compression and tensile strength (among other things) are expressed by the game concepts of hardness and hitpoints.


thorin001 wrote:
I would venture t say that compression and tensile strength (among other things) are expressed by the game concepts of hardness and hitpoints.

And the nebulous 'ineffective weapon' clause. Which makes it difficult.

I don't like the concept that as soon as someone gets an adamantine weapon they can tunnel through solid stone with ease, but I don't have a great way, even with a house rule, to fix it and keep some things that I do like (taking an axe to a door for example.) My solution so far has been to not abuse this as a player, and when I run games my players have returned the favor, but if it came down to it I'm not sure how I would rule.

Grand Lodge

thorin001 wrote:
I would venture t say that compression and tensile strength (among other things) are expressed by the game concepts of hardness and hitpoints.

Which is ignored by adamantine for most all materials. Hence me saying most of what you're saying probably doesn't matter. But Dave is right in that what exactly makes a weapon "ineffective" isn't well defined.


Eh...I imagine adamantine sword vs stone wall like the Star Wars scenes of Jedi cutting through doors. Less swing as stab and slice.

And I like the idea of high level martials punching through walls (perhaps with adamantine gauntlet assistance).


dragonhunterq wrote:
If you don't want a binary effective/ineffective situation how about this additional guideline: If you judge an adamantine weapon as becoming more effective, but not fully effective, consider allowing it to deal damage without bypassing DR.

What?

Did you mean allowing it to deal damage without bypassing Hardness?

EVERY weapon can already do that. If you hit a stone door with a steel great maul, you do your damage -8 (Hardness) to the door.

Now you're suggesting that the way to balance adamantine in a non-binary way is to treat it like it's not adamantine? That seems like extremely binary, actually.


He suggests to treat an ineffective adamantium weapon as a not ineffective not adamantium weapon.


DM_Blake wrote:
dragonhunterq wrote:
If you don't want a binary effective/ineffective situation how about this additional guideline: If you judge an adamantine weapon as becoming more effective, but not fully effective, consider allowing it to deal damage without bypassing DR.

What?

Did you mean allowing it to deal damage without bypassing Hardness?

EVERY weapon can already do that. If you hit a stone door with a steel great maul, you do your damage -8 (Hardness) to the door.

Now you're suggesting that the way to balance adamantine in a non-binary way is to treat it like it's not adamantine? That seems like extremely binary, actually.

(just noticed I used DR when I meant hardness - sorry about that!)

Not quite what I meant. I'm talking about a weapon that would normally be totally ineffective - that is dealing zero damage - becoming partially effective.
so instead of:
0 damage->ignores hardness
you get:
0 damage->can't ignore hardness->ignores hardness

It was just a thought in an area already subject to GM arbitration.

(For hardness read hardness less than 20 of course)


Dave Justus wrote:
I don't like the concept that as soon as someone gets an adamantine weapon they can tunnel through solid stone with ease, but I don't have a great way, even with a house rule, to fix it and keep some things that I do like (taking an axe to a door for example.)

Well, you could just point out that without some Knowledge (engineering) they risk tunnels collapsing on top of them or taking out a load-bearing wall.


Samasboy1 wrote:

Eh...I imagine adamantine sword vs stone wall like the Star Wars scenes of Jedi cutting through doors. Less swing as stab and slice.

And I like the idea of high level martials punching through walls (perhaps with adamantine gauntlet assistance).

This is part of why I love Adamantine Spiked Gauntlets. They're Piercing, so it falls under GM purview on whether or not they can damage a lot of stuff (Piercing being typically non-effective and all of that), but at the end of the day it's still a punch so I think you could talk most GMs into it.

Personally I'd allow most adamantine weapons to slice through stone and steel as long as it makes some sense-- maybe ask the players to explain how they're doing it for an edge case that I can't visualize.

Now, whether or not they'll do that quietly is a separate question, which is why the possibility of a dungeon bypass doesn't concern me overly much.


claudekennilol wrote:
Kazaan wrote:
A sword might put a scratch in the wall, but it isn't going to be able to pry the edges of that scratch apart. Swords have thickness to them. You know those scenes in cartoons where someone slashes a sword and some object seems intact but then sheers off along a perfect mirror edge? Yeah, that doesn't really happen, especially not with a stone wall. You need to be able to lever and pry the stones apart with an appropriate tool (ie. pickaxe). By contrast, wood is much softer and more pliable, compared to stone, so your adamantine sword would have far less trouble cleaving through it. It's basically the distinction between Hardness and Strength. Diamond is hard, but at the same time fragile. You cannot scratch a diamond and a diamond can scratch anything, but if you smack a diamond with a hammer, it will shatter. A diamond can scratch a steel bar, but that steel bar wouldn't necessarily shatter if struck with a hammer. Adamantine will overcome hardness, but it can't overcome compression or tensile strength.
I'm inclined to say your argument is entirely flawed as the bolded isn't defined at all for pathfinder, but there isn't enough text on the subject to say what's right and what isn't in this regard.

And I'm inclined to invoke the spirit of SKR in saying, English is a versatile language. The game needs not define compression and tensile strength in order for a sufficiently competent person to understand that such concepts exist. Adamantine overcomes hardness; that is all. But a stone wall or door has more than just hardness going for it. You can't bring down a stone wall with an adamantine sword, but you could bring it down with a pickaxe and sufficient strength, adamantine or otherwise. You can't cut a rope with an adamantine bowling ball, but you could cut it with a bladed weapon and sufficient strength, adamantine or otherwise.


You could break a rope with a Bowling Ball, Adamantine or otherwise.


kyrt-ryder wrote:
You could break a rope with a Bowling Ball, Adamantine or otherwise.

Not in Pathfinder it can't. It's not bladed, hence an ineffective weapon to damage a Rope.


Kazaan wrote:
kyrt-ryder wrote:
You could break a rope with a Bowling Ball, Adamantine or otherwise.
Not in Pathfinder it can't. It's not bladed, hence an ineffective weapon to damage a Rope.

One more houserule among thousands it would seem.

EDIT for clarity: I'd never let a bowling ball break a rope that was dangling loosely, that's stupid. But a taut rope or one laying against a solid object is fair game IMO


Samasboy1 wrote:

Eh...I imagine adamantine sword vs stone wall like the Star Wars scenes of Jedi cutting through doors. Less swing as stab and slice.

And I like the idea of high level martials punching through walls (perhaps with adamantine gauntlet assistance).

The problem with that is that lightsabers don't have to worry about friction - their business end is made of energy, and they're not so much cutting things and burning/melting them. A physical blade is relying on depth of penetration to inflict damage, and it's going to encounter a LOT of friction the deeper it goes thanks to the flat of the blade. In comparison, a pickaxe has a wedge-shaped head that's designed to deliver a more focused impact without much penetration, and be easier to withdraw without getting stuck in the material.

kyrt-ryder wrote:
You could break a rope with a Bowling Ball, Adamantine or otherwise.

I'm inclined to say that falls under the purview of Strength checks, and bypasses hit points and hardness entirely. Granted, I'm not sure how one calculates the Strength score of an inanimate object - maybe base it on the Strength required to lift it?


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kyrt-ryder wrote:
Kazaan wrote:
kyrt-ryder wrote:
You could break a rope with a Bowling Ball, Adamantine or otherwise.
Not in Pathfinder it can't. It's not bladed, hence an ineffective weapon to damage a Rope.

One more houserule among thousands it would seem.

EDIT for clarity: I'd never let a bowling ball break a rope that was dangling loosely, that's stupid. But a taut rope or one laying against a solid object is fair game IMO

You really need to read the rules, it seems. Not every rule you're unfamiliar with is a houserule, you know. The relevant rules passage is quoted up at the top of this very thread under "Ineffective Weapons" and even bolded.


You misunderstood. I was saying that allowing a bowling ball to break a taut rope or a rope against a flat object is added to my houserules

Scarab Sages

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Here I was expecting something about the Pathfinder equivalent of Captain Planet villains. *pouts*


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I'm Hiding In Your Closet wrote:
Here I was expecting something about the Pathfinder equivalent of Captain Planet villains. *pouts*

*Jots campaign notes about a legendary group of rings used to summon a humanoid hybrid elemental.*


@ Kurt, It's still not a house rule. Whether a certain type of damage is effective is explicitly up to DM discretion. Whatever you choose was literally stated to be how the rule works.

Shadow Lodge

Irthos wrote:
Samasboy1 wrote:

Eh...I imagine adamantine sword vs stone wall like the Star Wars scenes of Jedi cutting through doors. Less swing as stab and slice.

And I like the idea of high level martials punching through walls (perhaps with adamantine gauntlet assistance).

The problem with that is that lightsabers don't have to worry about friction - their business end is made of energy, and they're not so much cutting things and burning/melting them. A physical blade is relying on depth of penetration to inflict damage, and it's going to encounter a LOT of friction the deeper it goes thanks to the flat of the blade. In comparison, a pickaxe has a wedge-shaped head that's designed to deliver a more focused impact without much penetration, and be easier to withdraw without getting stuck in the material.

Indeed. Remember that ice doesn't have any hardness either, yet I don't imagine anyone thinks that one can use a normal sword to cut through a two foot thick block of ice as if it were made of butter.


Serum wrote:
Irthos wrote:
Samasboy1 wrote:

Eh...I imagine adamantine sword vs stone wall like the Star Wars scenes of Jedi cutting through doors. Less swing as stab and slice.

And I like the idea of high level martials punching through walls (perhaps with adamantine gauntlet assistance).

The problem with that is that lightsabers don't have to worry about friction - their business end is made of energy, and they're not so much cutting things and burning/melting them. A physical blade is relying on depth of penetration to inflict damage, and it's going to encounter a LOT of friction the deeper it goes thanks to the flat of the blade. In comparison, a pickaxe has a wedge-shaped head that's designed to deliver a more focused impact without much penetration, and be easier to withdraw without getting stuck in the material.
Indeed. Remember that ice doesn't have any hardness either, yet I don't imagine anyone thinks that one can use a normal sword to cut through a two foot thick block of ice as if it were made of butter.

I do in D&D or Pathfinder. I am the One then.


Regardless of what sort of hardness you're getting past, the stone wall will still have plenty of hitpoints so why is it hard to believe that an adamantine sword could eventually carve a path? Most classes would have to be reasonably leveled to break down a wall in a single blow and by that point, there are also spells to make doors and/or holes so I don't see a balance problem.


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mmmmmm..pointless rules minutiae

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