I’ve decided to post tips on the rules system for Pathfinder and with any luck plan to have you guys use them that week so we can test it all out.
This week’s tip: Aid Another
You can help someone achieve success on a skill check by making the same kind of skill check in a cooperative effort. If you roll a 10 or higher on your check, the character you’re helping gets a +2 bonus on his or her check. (You can’t take 10 on a skill check to aid another.) In many cases, a character’s help won’t be beneficial, or only a limited number of characters can help at once.
In cases where the skill restricts who can achieve certain results, such as trying to open a lock using Disable Device, you can’t aid another to grant a bonus to a task that your character couldn’t achieve alone. The GM might impose further restrictions to aiding another on a case-by-case basis as well.
In melee combat, you can help a friend attack or defend by distracting or interfering with an opponent. If you’re in position to make a melee attack on an opponent that is engaging a friend in melee combat, you can attempt to aid your friend as a standard action. You make an attack roll against AC 10. If you succeed, your friend gains either a +2 bonus on his next attack roll against that opponent or a +2 bonus to AC against that opponent’s next attack (your choice), as long as that attack comes before the beginning of your next turn. Multiple characters can aid the same friend, and similar bonuses stack.
You can also use this standard action to help a friend in other ways, such as when he is affected by a spell, or to assist another character’s skill check.
Aiding another as a swift action (one per round, on your turn) is a feat but isn’t available until you have a BA +6 and some other feats. Regardless, it’s a good use of a standard action when you aren’t sure what else to do or if you don’t want someone close to you getting hit as easily.
Skill checks I’ll just call it as I see it. Stealth may not be so useful with aid another unless everyone was super creative with how they are aiding. However, it may be beneficial to aid a bard’s perform check while singing…