merpius's page

I've got a new quandary for you peoples; the Sleepless Detective PrC gets an ability called Predictive Riposte.

: At 8th level, a Sleepless detective’s insight into human nature allows her to predict and counter her opponents’ attacks. As a standard action, she can designate an opponent within 30 feet as the target of her predictive riposte, gaining a +4 insight bonus to AC against that opponent’s attacks. Once per round, after a melee attack from the designated target misses her, the detective can spend an immediate action to make a single melee attack against that opponent as long as it is within her threatened area. This counts as her attack of opportunity for this round. If the detective’s attack hits, she may add her sneak attack bonus on her damage roll. The bonuses from this ability last until the end of combat, or until the detective designates a new target of her predictive riposte.

This indicates that it is an immediate action (which uses up the swift for the next round), then goes on to indicate that it counts as "her" attack of opportunity (singular, but I think it's probably obvious that if they have more than 1, it would only use 1; feel free to debate that too, if necessary).

Is my reading that this uses both an immediate action and an attack of opportunity (in addition to the standard action before, to designate) correct?

IF Paizo actually cared about Pathfinder 1E, would this be FAQable?

I am curious what the consensus is on the effects of magical size changes on dragons. Presumably virtual size changes (such as strong jaw) would only affect their natural weapons' damage, not any other aspect of a dragon's capabilities related to size.
However, things like the breath weapon, ability to perform a tail sweep or crush, and fly speed all key off of a dragon's size as well. Note that none of these key off of the dragon's age class; that effect is only indirect, in that the age class will increase size.
So, the question is: do real size changes (that are not from age category) affect these things that are keyed off of size? Looking for RAW here, primarily, though any RAI that is actually as the designers intended would also be welcome; table variation is just that and is going to vary too widely to be of interest beyond the table in question.
Any additional insight around this is also welcome? Is my assumption that virtual size increases would never affect any of these correct? Is there something I'm just totally missing about this?

Edited to remove aura, which is based off of age category.