Disclaimer: none of this might be accurate or even legal. I did this at a very sleep deprived hour of night. Blah.

This is Sicinia, the Aiding Merfolk Cavalier. HERE

Made a Merfolk Cavalier that follows the Order of Dragons, is adopted by halflings, and rides a horse into battle. She rides on a horse traveling 50-100ft per turn. She goes around Aid Another'ing everyone for +6 as Swift Aid lets you do one as a swift action, and can do it as a standard action as well, either aiding another person with +9 to atk or ac, or granting that 1 person +15.

This is because:

Multiple characters can aid the same friend, and similar bonuses stack.

It doesn’t say you can’t aid the same person either. She’s adopted by halflings so she can take the Helpful(Halfling) trait, and make her aid another’s a +4 instead of +2, level 2 in dragon order cavalier increases that bonus by +1, and battle herald gives you another +2. Furthermore, Benevolent weapons can grant their bonus on aid another actions.

The bonuses are off for Swift Aid because you are not granting a +2, but a +1 bonus, so it doesn’t turn into +4 from Helpful(Halfling). But the dragon cavalier, battle herald and benevolent still stack. So +6.

The Bodyguard feat lets you do Aid of Opportunities, giving up your attack of opportunity to aid an ally’s AC. As similar bonuses stack… if you swift aided + standard aided + aid of opportunitied 1 ally, that’s a +24 to their AC.

The whip allows you to do all of this at a distance and provokes attacks of opportunities more often. All of this while she travels 50-100ft per turn at 106hp(I like making max HD characters) and 30ac.

Whelp. Enjoy.