Alternative Shield Mechanics


Prerelease Discussion


I, like many other people, don't like the current rules for shield use. I dislike that it takes an action to ready a shield when, realistically, you would use a shield and weapon in tandem.

Given that I don't want to just complain about the current system, I thought I would offer an alternative solution, but first, let's hypothesize on WHY shields have changed in PF2.

Shields in PF1 are boring. All a shield does in PF1 is sit there, take up a hand slot, and provide you with a passive boost to AC.

My guess is that Paizo wanted to spice shields up and make them more interesting, so they added the ability to soak a hit with a prepared shield as a Reaction. This makes shield use "active" and makes you feel in control of your defense.

In order to balance this, raising a shield had to cost an action, otherwise, the shield user pretty much gets free DR for one attack every round for not a whole lot of cost.

Now, onto my alternate solution.

1) Replace "raising a shield takes an action" with "equipping a shield causes a character to incur a -2 penalty on all attack rolls". This represents the added difficulty of fighting with a shield without "stealing" an action from a shield user every round that they want to use a shield.

2) Replace the complicated Shield Soak Reaction with a Parry Reaction.

Parry Reaction
Requirements: Using a shield with which you have at least Trained Proficiency
Trigger: An attack roll against your character beats their AC.
Effect: Make a Parry Check (d20 + Proficiency Bonus + Shield AC Bonus). If your Parry Check exceeds the result of the incoming attack roll, that attack is considered a "miss". You lose your Shield Bonus to AC until the beginning of your next turn.

Now, before you scoff and say, "yeah, but is this balanced", actually, it's pretty close.

Being a nerd, I wrote a program to simulate combat between 2 characters, a great weapon fighter with a d12 weapon and a sword and board fighter with a d8 weapon and a shield that provides a +2 Shield Bonus.

The characters were both level 1 with "Expert Proficiency" in their weapons and shield, They both had +4 armor bonus and +3 STR, DEX, and CON modifiers.

I assumed 8 racial HP and 10 Class HP for a total of 21 HP.

I ran 1 million simulations and the end results had the sword and board fighter winning 53.8% of the time, which is pretty close.

I did NOT test this with any extra feats like power attack, just to keep things even.

(The last time I ran a similar program I got similar results for the Power Attack vs Shield Soak mechanic.)

Pros and Cons

Pros: I think this feels more "realistic" and doesn't have a perceived "punishment" associated with it.

It ignores the complex Shield Soak Mechanic, which gives players less to remember or write down on their sheet.

It let's you roll another die! Who doesn't like that?

Cons: If you like getting DR from your Shield, that's gone (but maybe that could be added back in as a feat?)

It's another die roll, which some people may not want. Personally, I like rolling dice, but If all of your players are taking Parry Reactions every round, then that's another 4 dice rolls per round of combat which may slow down the game.

It may not be balanced with other features that Paizo wants to implement or at higher levels, since we don't know a lot about that yet.

So what does everyone think?


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Pathfinder Maps Subscriber; Pathfinder Roleplaying Game Superscriber

Looks needlessly complex to me.

IMHO there is only one change necessary to eliminate all criticism of the shield mechanic:

- Shields should provide their basic +1 or +2 AC bonus at all times, as long as the shield is equipped.
- The "Raise Shield" action is used normally, and provides the listed measure of DR against one attack.

With this one simple modification, everyone will be happy.


Wheldrake wrote:

Looks needlessly complex to me.

IMHO there is only one change necessary to eliminate all criticism of the shield mechanic:

- Shields should provide their basic +1 or +2 AC bonus at all times, as long as the shield is equipped.
- The "Raise Shield" action is used normally, and provides the listed measure of DR against one attack.

With this one simple modification, everyone will be happy.

That makes using a shield MUCH more powerful. The idea is that balance is a factor. Balance it the reason why it takes an action (and a Reaction) currently. Just removing that fixes one problem and breaks the balance.


Starfinder Charter Superscriber

I'd say I prefer a reliable DR to an iffy roll. I'm going to try it as they've already laid it out, and see what I think before I start thinking about alternatives.


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Just envision it as "I've got 3 buckets of attention I can devote per round. I'm going to devote 1 bucket to making sure my shield is in the right place to protect me. If I don't pay attention and am too busy with something else, my enemies can just attack from an angle the shield doesn't defend."


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thflame wrote:
realistically, you would use a shield and weapon in tandem.

Have you tried actually doing that? Fighting with a shield and a weapon at the same time? It's incredibly hard to keep track of what both of your arms are doing all the time and whether your non-dominant arm is correctly positioned to defend you when you're probably also going to need it to counter-balance your weapon swings. So, yeah, readying a shield to block takes an actual moment of concentration and affects the rest of your actions.

That can be overcome with training, sure, and there's confirmation (In the gearing up blog thread IIRC) that feats exist that allow you to both raise your shield and block with it as a single reaction instead of having to use an action to raise and a reaction to block. So you're looking to fix something that's already fixed.

EDIT: My point is that the baseline for "proficient shield user" is not equal to "expert shield user", as it is in first edition more or less. Someone can know how to properly use a shield to block (it's not as easy as it sounds) and still not be able to seamlessly use a shield during a fight. I like the granularity offered by the new shield mechanics.


thflame wrote:
Pros: I think this feels more "realistic" and doesn't have a perceived "punishment" associated with it.

I disagree. To me taking a constant -2 to attack as long as the shield is equipped is pretty punishing, especially with how this system has shown to scale AC with level. And heavens forbid the enemy is also wearing a shield, we'll never hit each other. Really, paying an action when I need to seems a lot less punishing than a constant penalty to attack.


I'd expect using a shield to actually increase your hit modifier. You can use it to open up holes in your opponents defenses. Have you ever fought with a shield? There are really good reasons for shields to be so popular in multiple cultures with multiple fighting styles.


Wouldn't that -2 to attack mess with your crit chances? Id assume it makes sword and board inferior?


Pathfinder Rulebook Subscriber

I wish I could find the post detailing the current shield mechanics vs a two hander one on one. I recall the shield user winning more than 53.8% of the time. And the thing is, they should. Because avoiding damage is actually just one small part of a tank's job. They also need to prevent their allies from getting hurt. The two hander does this better if it kills the enemy faster. The shield user needs feats to let it block for an ally to facilitate that.


Captain Morgan wrote:

I wish I could find the post detailing the current shield mechanics vs a two hander one on one. I recall the shield user winning more than 53.8% of the time. And the thing is, they should. Because avoiding damage is actually just one small part of a tank's job. They also need to prevent their allies from getting hurt. The two hander does this better if it kills the enemy faster. The shield user needs feats to let it block for an ally to facilitate that.

I remember this post! I think it was a thread about Power Attack math.

Here it is.

The sword-and-board fighter with Power Attack is actually stronger than a greatsword fighter with Power Attack.


Pathfinder Rulebook Subscriber
Thebazilly wrote:
Captain Morgan wrote:

I wish I could find the post detailing the current shield mechanics vs a two hander one on one. I recall the shield user winning more than 53.8% of the time. And the thing is, they should. Because avoiding damage is actually just one small part of a tank's job. They also need to prevent their allies from getting hurt. The two hander does this better if it kills the enemy faster. The shield user needs feats to let it block for an ally to facilitate that.

I remember this post! I think it was a thread about Power Attack math.

Here it is.

The sword-and-board fighter with Power Attack is actually stronger than a greatsword fighter with Power Attack.

Oh, hey look, the same poster ran both of these experiments. That's cool.

So yeah, I want to reiterate my point that a 60% margin of victory is actually better for balance than a 53.8%. The shield user can be significantly better in one on one duals and still not be better overall, because Pathfinder is more than one on one duals.

The two hander kills enemies faster, which means his teammates are less likely to get hit even if he does. (And most enemies will switch targets if they find they can't effectively get past a shield.) He does better against save or suck casters who lack bypass shields entirely. And even if it takes an action to regrip his weapon, releasing his grip as a free action means he has an easier time pulling out potions or opening doors than the shield user.

All those things need to be taken into account, not just if the two hander beats the shield user one on one.


Wheldrake wrote:
Shields should provide their basic +1 or +2 AC bonus at all times, as long as the shield is equipped.

I'm wondering whether getting your proficiency bonus for just holding the shield and proficiency + shield for using an action.

It would mean that somebody untrained would be getting a penalty unless they're actively using the shield, and somebody trained would get a (smaller than usual) bonus for just having the shield, but get the full bonus for devoting some time to defending themselves.
Not sure how it'd interact with the "use worse of armour & shield proficiency" thing though


Planpanther wrote:
Wouldn't that -2 to attack mess with your crit chances? Id assume it makes sword and board inferior?

Having a shield messes with your opponent's crit chances too, so it evens out.

The biggest difference is having a second chance to stop an attack seems to be slightly better than dealing a bigger die of damage with 50% more STR bonus.

The sword and board guy is STILL superior to the two handed fighter, though only slightly more so.


Pathfinder Rulebook Subscriber
thflame wrote:
Planpanther wrote:
Wouldn't that -2 to attack mess with your crit chances? Id assume it makes sword and board inferior?

Having a shield messes with your opponent's crit chances too, so it evens out.

The biggest difference is having a second chance to stop an attack seems to be slightly better than dealing a bigger die of damage with 50% more STR bonus.

The sword and board guy is STILL superior to the two handed fighter, though only slightly more so.

He's slightly superior at outlasting opponents. Again, that doesn't make him superior across the board, even if you don't touch other math.


Captain Morgan wrote:
thflame wrote:
Planpanther wrote:
Wouldn't that -2 to attack mess with your crit chances? Id assume it makes sword and board inferior?

Having a shield messes with your opponent's crit chances too, so it evens out.

The biggest difference is having a second chance to stop an attack seems to be slightly better than dealing a bigger die of damage with 50% more STR bonus.

The sword and board guy is STILL superior to the two handed fighter, though only slightly more so.

He's slightly superior at outlasting opponents. Again, that doesn't make him superior across the board, even if you don't touch other math.

I meant in the 1-on-1 duel.

The point isn't to make the shield fighter strictly superior to the two handed fighter. If shield fighters were strictly superior, all fighters would be shield fighters. The objective is to make a trade off that is balanced, feels rewarding, and makes sense in the theater of the mind (an important aspect that I feel Paizo isn't giving enough attention with PF2).

Against enemies that don't target AC, the Shield fighter is probably going to be disadvantaged, as the two handed fighter is going to be dishing out more damage and getting more crits, but against anything that targets AC, the Shield Fighter is going to last longer. (Keep in mind that "touch AC" works very differently now and Shield bonuses apply to touch AC.) This helps differentiate between a bruiser (what a two handed fighter is likely trying to be) and a tank (what a shield fighter is likely trying to be).


Pathfinder Rulebook Subscriber

I think we are in agreement on what the goal should be. I just think the current solution accomplishes it better than your alternative. Maybe some tweaks to your idea could change that?


Pathfinder Rulebook Subscriber

Off the top of my head I'd like a contested roll out of the scenario, maybe linked to proficiency.

Warning, self indulgent pipe dreams ahead.

Untrained shield use- takes an action a turn to keep ready. You aren't good at it at all and it keeps drifting to poor angles.

Trained- You can hold a board in front of you without effortand no longer need an action to keep it ready. An active block unreadies your shield.

Expert- Your shield becomes an extension of your arm. Roll your shield proficiency bonus vs the incoming attack or DC of the effect. Your shield only unreadies on a failure.

Master- As expert, but your shield only unreadies on a critical failure. If this roll is a critical success against a melee attack, the attacker becomes flat footed until the beginning of their turn.

Legendary- A shield in your hands is a a wall your foes crash upon. your shield does not unready after an active block. In addition, you receive half the DR of an active block to all attacks as well as half the save bonus of an active block to all valid spells.

Radiant Oath

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Could we perhaps wait until seeing the full Shield mechanics and associated feats before proposing "fixes"?


Pathfinder Rulebook Subscriber
Evilgm wrote:
Could we perhaps wait until seeing the full Shield mechanics and associated feats before proposing "fixes"?

No. What has already been revealed is worth criticizing and contemplating solutions to.

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