<style> p, ul {text-align: justify; font-size: 10px;} .phb:after {content: "";} .phb p~p {text-indent: 0em;} </style> <div class='wide'> ### Aid Of Opportunity During a combat [encounter](https://www.d20pfsrd.com/BASICS-ABILITY-SCORES/GLOSSARY/#Encounter), you can spend an [immediate](https://www.d20pfsrd.com/gamemastering/combat/#TOC-Immediate-Actions) action in order to call for help; upon doing so, any ally that is adjacent to you can choose to expend an [attack of opportunity](https://www.d20pfsrd.com/gamemastering/combat#TOC-Attacks-of-Opportunity) in order to perform the [aid another](https://www.d20pfsrd.com/gamemastering/combat/#TOC-Aid-Another) action on you. For example, Malcolm the [wizard](https://www.d20pfsrd.com/classes/core-classes/wizard/) and Deneb the [dauntless defender](https://www.gmbinder.com/share/-LWMb1qszUa0XktaZDhT) are fighting an [Ice Troll](https://www.d20pfsrd.com/bestiary/monster-listings/humanoids/giants/troll/troll-ice). The [Ice Troll](https://www.d20pfsrd.com/bestiary/monster-listings/humanoids/giants/troll/troll-ice) makes an attack against Malcolm, who calls for help from Deneb; Deneb provides Malcolm with an aid of opportunity and his [aid another](https://www.d20pfsrd.com/gamemastering/combat/#TOC-Aid-Another) check is successful. As a result, he increases Malcolm's AC by 2, which causes the [Ice Troll's](https://www.d20pfsrd.com/bestiary/monster-listings/humanoids/giants/troll/troll-ice) attack to miss, since it had rolled a 16 and Deneb's aid of opportunity increased Malcolm's AC from 15 to 17. </div>