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*Pathfinder & Starfinder
Understanding Attacks of Oppurtunity
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<blockquote data-quote="AbdulAlhazred" data-source="post: 5515059" data-attributes="member: 82106"><p>The best article is the combat chapter of the PHB1 or the Rules Compendium.</p><p></p><p>1) Opportunity Attacks can normally only be taken against an enemy that is adjacent to you, they are usually a Melee Basic Attack, so they would use a melee weapon, not a ranged weapon (but you could do an unarmed MBA and call it whacking someone with your bowstave). </p><p></p><p>2) Yes, making a ranged attack or an area attack (like a fireball, any power with the range being 'area' or 'range' including Range Weapon. So for instance using the power Twin Strike using a bow while adjacent to an enemy (the target or not) will provoke an OA for each attack made (but note that one enemy can only OA once per character/monster turn).</p><p></p><p>3) Any number of OAs can be provoked by a single action, as long as each enemy only makes one OA. </p><p></p><p>4) OAs are never ranged (unless you have some power or something that says different).</p><p></p><p>5) OAs are never made against anyone that isn't adjacent unless you have a power etc that says different or if you have Threatening Reach (very hard for PCs to get). Only a few monsters have this. It lets them OA at greater distances, but it is still a melee attack, not a ranged attack.</p><p></p><p>6) There is no such thing as facing in 4e, so you technically can't sneak up behind an enemy once combat is joined. A rogue (for example) can sneak up on a monster IF he has cover and can make stealth rolls that beat the monster's passive perception (most up to date stealth rules are in the RC or PHB2). You can 'jump out' at someone and gain combat advantage, but it lasts only during the single action you come out, so your action better be both a move and an attack (charge or certain powers that combine movement and like Deft Strike). </p><p></p><p>7) Shifting, teleporting, and being force moved don't trigger OAs, so any character can shift 1 square safely but some powers/class features/etc do allow OAs against shifting in some situations. Teleporting or being pushed, pulled, slid are pretty much always safe. Invisible and hidden characters will also avoid OAs.</p><p></p><p>8) Note that there are couple of things a creature must be able to do in order to take OAs. It has to be able to see you and it can't be stunned or dazed. </p><p></p><p>Mostly I think carefully reading the Rules Compendium combat chapter and playing through some scenarios will help you understand it better. You'll want to pay attention to the rules on what actions you can take at what times and the stealth rules, and also Line of Sight, which are all pretty interrelated in an actual fight. Make sure to get an idea of what all the conditions do as well.</p></blockquote><p></p>
[QUOTE="AbdulAlhazred, post: 5515059, member: 82106"] The best article is the combat chapter of the PHB1 or the Rules Compendium. 1) Opportunity Attacks can normally only be taken against an enemy that is adjacent to you, they are usually a Melee Basic Attack, so they would use a melee weapon, not a ranged weapon (but you could do an unarmed MBA and call it whacking someone with your bowstave). 2) Yes, making a ranged attack or an area attack (like a fireball, any power with the range being 'area' or 'range' including Range Weapon. So for instance using the power Twin Strike using a bow while adjacent to an enemy (the target or not) will provoke an OA for each attack made (but note that one enemy can only OA once per character/monster turn). 3) Any number of OAs can be provoked by a single action, as long as each enemy only makes one OA. 4) OAs are never ranged (unless you have some power or something that says different). 5) OAs are never made against anyone that isn't adjacent unless you have a power etc that says different or if you have Threatening Reach (very hard for PCs to get). Only a few monsters have this. It lets them OA at greater distances, but it is still a melee attack, not a ranged attack. 6) There is no such thing as facing in 4e, so you technically can't sneak up behind an enemy once combat is joined. A rogue (for example) can sneak up on a monster IF he has cover and can make stealth rolls that beat the monster's passive perception (most up to date stealth rules are in the RC or PHB2). You can 'jump out' at someone and gain combat advantage, but it lasts only during the single action you come out, so your action better be both a move and an attack (charge or certain powers that combine movement and like Deft Strike). 7) Shifting, teleporting, and being force moved don't trigger OAs, so any character can shift 1 square safely but some powers/class features/etc do allow OAs against shifting in some situations. Teleporting or being pushed, pulled, slid are pretty much always safe. Invisible and hidden characters will also avoid OAs. 8) Note that there are couple of things a creature must be able to do in order to take OAs. It has to be able to see you and it can't be stunned or dazed. Mostly I think carefully reading the Rules Compendium combat chapter and playing through some scenarios will help you understand it better. You'll want to pay attention to the rules on what actions you can take at what times and the stealth rules, and also Line of Sight, which are all pretty interrelated in an actual fight. Make sure to get an idea of what all the conditions do as well. [/QUOTE]
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