Aerial Roll (Combat) - When is the check done?

[JiggleFloyd]

Hello,

When is this immediate action done? Is it done before or after you see the results of the attack(s)?

Also, I assume that this would only work for one attack roll (if an enemy used multiple attacks against you), correct?

Text
By spinning through the air, you are able to avoid your opponents’ attacks.

Prerequisites: Fly 10 ranks.

Benefit: You can perform a defensive roll while in the air. As an immediate action, you can attempt a Fly check when you are attacked while flying. If the result of the check is greater than the result of the attack roll, you dodge the attack, causing it to miss automatically. Whether you succeed or fail at the Fly check, the barrel roll leaves you off-balance and vulnerable, causing you to take a –10 penalty on Fly checks until the end of your next turn.

[Sandslice]

The general rule is that any reactions you're doing to modify an incoming attack must be done before the attack resolves. Exceptions will call out if they can be applied after the roll.

In the case of Aerial Roll, you're effectively changing your AC from {actual AC} to max ({your Fly check}, {actual AC}). You can't wait to Do A Barrel Roll until after the hit is confirmed; you'd just be rolling with an arrow or sword gash or whatever in you. So in this case, we apply the general rule: you Do A Barrel Roll after the attack is declared but before it's rolled.

Timely Inspiration is a bit different. That spell works by saying "Oh, you barely missed? Umm, esoteric mumbo-jumbo, muse says NO YOU DIDN'T" in reaction to a missed attack (or failed check).

Saving Finale, likewise, is like "Oh, you failed a save? Lemme stop SINGING and give the universe a chance to reconsider that fate. Roll again."

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And to the second: yes. You only get one immediate or swift action per round, measured from the end of your previous round. If you Barrel Roll, for example, you can't take any more immediate actions until the end of your next turn AND you can't take a swift action on your next turn.

[Thedmstrikes]

The immediate action is the Fly check to mitigate the attack. From that point forward until the end of your next turn, you take -10 to all Fly checks. Immediate actions occur at the point the situation calls for one interrupting the action that called for it. If your immediate action opposed roll is successful, the attack is ignored. As a reminder, an immediate action is borrowing against your next swift action, so you will not have a swift action during your next turn. To my knowledge, there is no way to gain additional swift or immediate actions beyond the one per turn rule.

Ninjad by Sandslice while walking my dog...