"Leaves a square during a move action" trigger


Rules Discussion


Hi everyone,

I'm curious about the trigger "leaves a square during a move action". I've seen rules to avoid triggering multiple actions with the same trigger, but no rules to avoid triggering multiple triggers with the same action. So, with actions like Disrupt Prey, am I right to assume that this trigger will be triggered at each square, leading to a potentially crazy number of attacks?


Nope, they got that covered (kinda tucked away though).

CRB page 474, Move Actions That Trigger Reactions wrote:
Some reactions and free actions are triggered by a creature using an action with the move trait. The most notable example is Attack of Opportunity. Actions with the move trait can trigger reactions or free actions throughout the course of the distance traveled. Each time you exit a square (or move 5 feet if not using a grid) within a creature’s reach, your movement triggers those reactions and free actions (although no more than once per move action for a given reacting creature). If you use a move action but don’t move out of a square, the trigger instead happens at the end of that action or ability.


Thanks a lot. I was really puzzled not finding this rule.

Sovereign Court

SuperBidi wrote:

Hi everyone,

I'm curious about the trigger "leaves a square during a move action". I've seen rules to avoid triggering multiple actions with the same trigger, but no rules to avoid triggering multiple triggers with the same action. So, with actions like Disrupt Prey, am I right to assume that this trigger will be triggered at each square, leading to a potentially crazy number of attacks?

I think disrupt prey is supposed to be a reaction, and that they printed the wrong symbol. It would be the only feat of this kind to be a free action instead of a reaction. Also, other ranger feats like Snap Shot imply that the ranger should have a reaction ability to work with.


Disrupt Prey has so many limitations: Only against prey, not against ranged attacks. If it's only advantage over Attack of Opportunity is that you get it 2 levels earlier and that it disrupts movements, it's not worth taking.


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SuperBidi wrote:
Disrupt Prey has so many limitations: Only against prey, not against ranged attacks. If it's only advantage over Attack of Opportunity is that you get it 2 levels earlier and that it disrupts movements, it's not worth taking.

? It's clearly worth taking unless you plan on taking a dedication to get AoO later.


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SuperBidi wrote:
Disrupt Prey has so many limitations: Only against prey, not against ranged attacks. If it's only advantage over Attack of Opportunity is that you get it 2 levels earlier and that it disrupts movements, it's not worth taking.

Disrupt Prey is a free action, which means you can use it as many times as the enemy triggers it, unlike Reactions where you only get one per turn (but you only get one attack per action they take). If you have reach and they are in melee, and they try to run away, you get a free attack. If you crit, they stop still within your reach. If they keep trying to run away (or decide to cast a spell from where they're at rather than use the whole turn moving) you get another attack, with another chance to disrupt. So it's actually like a stronger version of Stand Still, which can also trigger on spells and can trigger multiple times per turn, but only works on your prey.

Remember that at higher levels you can mark multiple enemies as prey, and also that your reach can get higher with friendly buffs, and I think this is one of the strongest "reactions" in the game.


Yes, I was answering to Ascalaphus considering that Disrupt Prey being a free action is an error. If you remove that from Disrupt Prey, it loses a lot of it's interest.

Sovereign Court

SuperBidi wrote:
Disrupt Prey has so many limitations: Only against prey, not against ranged attacks. If it's only advantage over Attack of Opportunity is that you get it 2 levels earlier and that it disrupts movements, it's not worth taking.

The advantage is that you don't have to multiclass for it. So it's at least one feat cheaper than dipping fighter for it, and it doesn't clog up your opportunities to multiclass into something else.

But if you really think it should be a free action, can you explain how rangers are supposed to use Snap Shot?


Ascalaphus wrote:
SuperBidi wrote:
Disrupt Prey has so many limitations: Only against prey, not against ranged attacks. If it's only advantage over Attack of Opportunity is that you get it 2 levels earlier and that it disrupts movements, it's not worth taking.

The advantage is that you don't have to multiclass for it. So it's at least one feat cheaper than dipping fighter for it, and it doesn't clog up your opportunities to multiclass into something else.

But if you really think it should be a free action, can you explain how rangers are supposed to use Snap Shot?

Point taken. That does make it look like a mistake. Which is a shame, as it creates its own niche as a free action "reaction".


Pathfinder Rulebook Subscriber
Ascalaphus wrote:
The advantage is that you don't have to multiclass for it.

Fair, but it's still just a worse AoO at that point for no real reason.

Grand Lodge

Squiggit wrote:
Ascalaphus wrote:
The advantage is that you don't have to multiclass for it.
Fair, but it's still just a worse AoO at that point for no real reason.

The only different between AoO and Disrupt Prey is that you must have already used Hunt Prey and ranged attacks don’t trigger it. Reach based rangers still get plenty of use out of Disrupt Prey, even if it is slightly weaker


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Syries wrote:
The only different between AoO and Disrupt Prey is that you must have already used Hunt Prey and ranged attacks don’t trigger it. Reach based rangers still get plenty of use out of Disrupt Prey, even if it is slightly weaker

Rangers are in general using one handed weapons. So it's either a non-lethal Whip or a ridiculous (unless you're a Gnome) Flickmace.

It gets pretty limited for a feat to work with only one single uncommon advanced weapon or non-classical builds.

Ascalaphus wrote:
But if you really think it should be a free action, can you explain how rangers are supposed to use Snap Shot?

If you look at the rules about Step, you'll see that they don't speak about free actions. But then, they say somewhere else that free actions and reactions have the same behavior regarding triggers and they quote specifically Step. It looks to me that they forgot to speak about free actions in quite a few places.

So, you can consider that the error is with Disrupt Prey, or you can consider the error is on Snap Shot :-)


Pathfinder Rulebook Subscriber
Syries wrote:


The only different between AoO and Disrupt Prey is that you must have already used Hunt Prey and ranged attacks don’t trigger it.

Those are both pretty significant restrictions, especially since double prey is a level 12 feat and, as SuperBidi points out, rangers don't have much innate support for traditional reach weapons.


And, as a side note, unless you're an Outwit Ranger, you are in general next to your Prey, so no need for it to do more than a Step to get to you.

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