In d20 and similar games, any sort of extra attack that gets triggered by an enemy opening up his defenses either during his turn or while taking an opportunity action.

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Does a reach weapon allow you to threaten squares 10 feet away or not?

In D&D 5e, does a reach weapon allow you to threaten squares up to 10 feet away for the purpose of Opportunity Attacks or does it just allow you to attack squares up to 10 feet away? There is ...
22
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1answer
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When can I make opportunity attacks?

What provokes an opportunity attack? In 3.X moving out of a threatened square, standing up from prone, casting a spell (unless cast defensively), or making a ranged attack provoked, while in 4e ...
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2answers
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My group's misunderstood opportunity attacks for years; what to do now I know this?

So, it turns out that my group has been doing shifting/OAs wrong for the 2½ years and the four campaigns we've played 4.0. We've always assumed that non-shift movement was safe, as long as it was ...
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4answers
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Why does shifting in D&D 4 not provoke Opportunity Attacks?

My gaming group is brand new. We had our first session tonight. I had a few questions for this SE... the first is this one. Why does shifting in D&D 4 not provoke Opportunity Attacks? Or am I ...
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1answer
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Do opportunity attacks end the target's movement?

Reading over chapter 9 (Combat) of the PHB, I stumbled across the following text, under the Opportunity attacks entry : The attack interrupts the provoking creature's movement, occuring right ...
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1answer
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Can I circle around an opponent and avoid opportunity attacks?

I have had trouble finding this information in the PHB. If as a fighter I stand on one side of an enemy, can I move to the other side of him as long as I stay in reach so that I don't provoke an ...
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Attacks of Opportunity while holding a reach and a non-reach weapon

Assume I wield a Whip in one hand and a dagger in the other. If a creature moves from 5ft to 10ft it has technically moved out of my reach (dagger), but at the same time it is still inside my reach ...
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Will both Mage Slayer and Sentinel together reduce an enemy's speed to 0?

If I have both the Mage Slayer feat and the Sentinel feat, will the reaction given to me by Mage Slayer reduce an enemy's speed to 0? Mage Slayer: When a creature within 5 feet of you casts a ...
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If an enemy moves and provokes an opportunity attack, where are they when the AoO happens?

I was surprised to find no mention of this in the Opportunity Attack rules on d20pfsrd or on the Paizo SRD: if an enemy moves from tile A to tile B and provokes an opportunity attack from me in doing ...
16
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4answers
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Can you draw a weapon as part of the Opportunity Attack?

Can you draw a weapon as part of the Opportunity Attack? The section about "Interacting with Objects around you" in the PHB p.190 says you can do things like "draw or sheathe a sword" as part of your ...
15
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2answers
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Can you make a grapple attack as an Attack of Opportunity

This came up in a game I was in the other day, so I'm curious as to know what people think. A gnome was attempting to flee past us up the stairs and I declared that I'd like to try and stop him, by ...
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What is the reason for introducing the rule for Attacks of Opportunity in D&D?

The Attacks of Opportunity are an important part in D&D and spinoffs of the game like Pathfinder. What does this rule for the game-system? How does it affect the fun of the players? Why was this ...
14
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1answer
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Do characters provoke opportunity attack when they leave another character's reach who is not facing them?

"You can make an opportunity attack when a hostile creature that YOU CAN SEE moves out of your reach." In 5E do you have to specify which way your character is facing at all times? If an enemy who ...
14
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2answers
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Does making an opportunity attack with a ranged weapon provoke an opportunity attack?

If I make an opportunity attack with a ranged weapon (e.g., a crossbow) against an adjacent enemy, does it provoke an opportunity attack as well?
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Tunnel Fighter & Polearm Master : Indefinite Attacks of Opportunity?

Here's the scenario: The character in question has both the Tunnel Fighter fighting style from Unearthed Arcana: Light, Dark, Underdark!: Tunnel Fighter You excel at defending narrow passages, ...
13
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2answers
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Can you be tripped by an AoO while standing up?

Let's say "John" is a fighter who has selected a number of feats to focus on tripping his enemies, including Greater Trip, and Combat Reflexes, and wielding a Reach Weapon while under the effect of a ...
13
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2answers
465 views

If a readied ranged attack action is used against the appearance of a burrowing creature, does the attack provoke an attack of opportunity?

In a recent D&D 4e session the characters readied an action, with the condition being the appearance of a burrowing creature from the ground. Suddenly the creature burst from the ground in front ...
13
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2answers
845 views

Does movement whilst hidden provoke opportunity attacks?

Playing a rogue in my first two D&D Sessions ever thanks to online tabletop (a god send, really!) However, I've come to learn that it's not an easy task (however, my healer has kept me from death ...
11
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2answers
1k views

Does a falling creature provoke Opportunity Attacks on the way down?

I'm in a D&D4e game right now, and in the current combat there are some flying creatures which may soon be knocked prone by PC #1. As part of being knocked prone, a flying creature falls to the ...
11
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2answers
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Do rogues get sneak attack damage added to attacks made outside their turn?

PHB says 'once per turn,' so, it would seem that a Rogue with Sentinel, for example, could "consistently" deal Sneak attack twice per round (whether the enemy triggers an OA or the melee weapon attack ...
11
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2answers
869 views

Can a single “opportunity” provoke multiple attacks of opportunity from the same creature?

I already know that if you take multiple "acts" while in a threatened square, you provoke multiple attacks of opportunity (for example, if you drink a potion and then move out of a threatened square) ...
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3answers
379 views

Can a character power attack before making an attack of opportunity?

In a recent game, a scenario arose where a character lost initiative but subsequently was granted an attack of opportunity (had Combat Reflexes) by an enemy. There was a follow up discussion about ...
10
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3answers
472 views

If movement is interrupted and an enemy occupies the destination square, is the movement lost?

Rules Compendium p.195 states: If an interrupt invalidates a triggering action, the triggering action is lost. It also states on p.197 that Opportunity Actions Interrupt the triggering action. ...
9
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2answers
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Does Sentinel's opportunity attack trigger when I shove someone?

Alright, so me and my pal are working through making a 5e fighty Cleric. He wants to take the Sentinel and Shield Master feats. Sentinel and Shield Master's relevant pats read: Sentinel You ...
9
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2answers
463 views

Does moving behind full cover count as “leaving the opponent's reach” for purposes of Attack of Opportunity?

Suppose I am fighting an enemy with the usual 5-foot reach. He is standing next to a wall beside an open doorway. I am in next to him in the room. Without leaving his 5-foot range, I move to the ...
9
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1answer
563 views

Can pulling with Thorn Whip generate an Opportunity Attack?

Let's say my party member is around 30 feet in front of me and engaged with a monster in melee close combat. If I successfully cast Thorn Whip and pull the monster 10 feet closer to me, will this ...
9
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2answers
377 views

Does using “Flee” with Command provoke an Opportunity Attack?

On a failed save, the target obeys the Flee command by [Spending] its turn moving away from you by the fastest available means. Three questions: Does that mean they take the Dash action? If ...
9
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2answers
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How can you force an opponent to provoke an opportunity attack?

I'm wondering if there's any way to give the fighter an extra attack by forcing the opponent to move out of a threatened square. Does bull rush provoke an opportunity attack against the target? Bull ...
9
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1answer
577 views

Can animals take AoO?

The master in our group doesn't allow animals to take AoO because "they don't have enough intelligence to use that tactic". He says it is documented somewhere but he doesn't remember where... Can ...
9
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2answers
271 views

Does a dryad's Tree Stride ability provoke opportunity attacks?

Tree Stride. Once on her turn, the dryad can use 10 feet of her movement to step magically into one living tree within her reach and emerge from a second living tree within 60 feet of the first ...
9
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2answers
449 views

Do large creatures provoke Opportunity Attacks when moving if some part of them still occupies the threatened square?

This scenario happened in our 4E game last night. A Troll (2x2) started in a non-threatened space and tried to move 2 squares to attack the cleric. With the first step, it entered a square ...
9
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2answers
635 views

Does a defender get to respond to a marked target making an opportunity attack on another PC?

Had a moment in my last session where the Striker provoked an Opportunity Attack from a Monster that was marked by the Defender. After the attack was resolved, our Defender wanted to respond with his ...
9
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2answers
374 views

How can I gain an attack of opportunity when a creature moves INTO reach?

Is there any way to reliably to gain an attack of opportunity when a creature moves into your reach? I already know you get one when a creature moves by you or away from you, and that's not what I'm ...
8
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2answers
608 views

Does Casting a Ranged Spell While Threatened Provoke Attacks of Opportunity More Than Once?

In normal circumstances - that is, absent an ability, spell, or other condition that states otherwise - a character in Pathfinder provokes attacks of opportunity for casting a spell while threatened. ...
8
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2answers
705 views

Can a character take Attacks of Opportunity while moving without stopping?

This mostly would come up in the context of readied actions, but other situations could arise. If a character is moving past an opponent who is provoking an attack of opportunity, can that character ...
8
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3answers
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Attack of Opportunity & spell casting

I'm a little stumped with this. Example, casting a spell, 1 standard action provokes attack of opportunity. The enemy is allowed a single melee attack. So, each time the wizard casts a spell, ...
8
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1answer
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Can a Light domain cleric's Warding Flare be used in response to an Attack of Opportunity?

Say a Light domain cleric is adjacent to a hostile creature, and attacks the enemy as its action. After the action, the cleric moves away from the creature, provoking an attack of opportunity, which ...
8
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1answer
372 views

Does the Direct The Strike power provoke OA?

Does using the Warlord's Direct The Strike power provoke opportunity attacks? It is a Ranged 5 power with only the Martial keyword (not an Implement or Weapon attack). It seems to me like it should ...
8
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1answer
2k views

When a creature is prone, can it make opportunity attacks?

If a creature is knocked prone, can it still make opportunity attacks?
8
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1answer
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Can a creature use an immediate interrupt power and an opportunity attack in the same round?

Can one creature or character use both an immediate interrupt and an opportunity attack in the same round, or are they mutually exclusive actions?
8
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1answer
366 views

In 3.5 DnD, readying a move action to go adjacent to an enemy provoking AoO

If you ready an action to move into threat range of an enemy triggered by that enemy doing something that would trigger an Attack of Opportunity (such as casting a spell or moving out of a square), do ...
8
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1answer
3k views

How many times does Sneak Attack damage apply?

In 3.5e, I used to add Sneak Attack damages to all the attacks of my character as long as the target was flat-footed or flanked or... However, when discussing the feature with wax eagle he mentioned ...
8
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2answers
880 views

Combat Challenge vs Opportunity Attack - which happens first?

If a fighter has marked an enemy, and the enemy does a ranged attack against someone other than the fighter, I believe the fighter can attack using Combat Challenge as the enemy is making an attack ...
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3answers
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In D&D 3.5 Why does “Withdraw” not trigger an “Attack of Opportunity”?

In D&D 3.5 "Withdraw" is defined as follows: Withdrawing from melee combat is a full-round action. When you withdraw, you can move up to double your speed. The square you start out in is ...
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2answers
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Can a Creature with Multiattack use it on an Opportunity Attack?

I am familiar with both concepts in D&D 5E — an opportunity attack allows the creature to take one reaction to make an attack; a multiattack allows monsters with the ability to take a number of ...
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Can I teleport adjacent to a moving enemy, and then take an attack of opportunity?

I was recently discussing interesting tricks that combat casters can use to control the battlefield, and the following scenario comes up. The party is defending something against advancing enemies. ...
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Does phasing away from an opponent provoke an attack of opportunity?

I know the rules for opportunity attacks: the only way to avoid an attack of opportunity is to either shift away or teleport away. However, if a creature moves via phasing, do they still trigger ...
7
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3answers
790 views

Can you shift, or move your speed, while squeezing?

One would imagine that movement while squeezing would be somewhat hindered, as making oneself occupy less than their normal space is not an easy task. In reading comments to a recent answer on the ...
7
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1answer
337 views

Is a creature's square included in its threatened area?

A creature threatens the squares in which it can make a melee attack, but does that include its own space? (If it's relevant, assume it's a medium creature.)
7
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1answer
818 views

Taking an attack of opportunity against an attack of opportunity

I came across a situation in my current game where a PC was taking an attack of opportunity against another PC when they moved out of their threatened square. They decided to use a non-lethal attack ...