What does Prescient Defense (magus arcana) AC bonus add to?

[vip00]

Prescient Defense:

The magus can expend 1 point from his arcane pool as an immediate action after hitting a target with a weapon attack, granting him a premonition of his enemy’s intentions. The magus gains a bonus to his AC and on Reflex saves equal to his Intelligence modifier (minimum 0) against attacks by that opponent until the beginning of his next turn.

There doesn't seem to be a lot of guidance here. It appears to be an unnamed bonus to AC. Does this bonus apply to touch AC? What about flat-footed? Does it add to CMD?

Based on the description, it makes the most sense to me to treat it as a dodge bonus (added to touch and CMD, not flatfooted, denied if dexterity is denied). Any other interpretations out there? I tend to interpret things more liberally than my DM, so I would love to see how others have played this!

[Xyllen]

I treat it as an insight bonus. Insight bonuses stack with anything. Yes it applys to touch. Others may treat it as a dodge bonuse. Either way.

[Are]

There are only two possible types it could be: Either it's an untyped bonus, or it's an Intelligence bonus.

Either way, it applies to both touch AC (since it's not an armor bonus, a shield bonus, or a natural armor bonus) and to flat-footed AC (since it isn't a dexterity bonus or a dodge bonus), and isn't denied by dexterity being denied.

[Darksol the Painbringer]

Are wrote:

There are only two possible types it could be: Either it's an untyped bonus, or it's an Intelligence bonus.

Either way, it applies to both touch AC (since it's not an armor bonus, a shield bonus, or a natural armor bonus) and to flat-footed AC (since it isn't a dexterity bonus or a dodge bonus), and isn't denied by dexterity being denied.

Pretty much this. I'd use Insight as a more official term (since I don't think there is an Intelligence Bonus to AC), but Insight bonuses apply to all concepts of AC, including CMD.

I've never personally handled the ability like this, but being a smart individually usually means the person has a lot of insight about them in regards to discovery and capability with knowledge and ingenuity, so the term "Insight" would be best in terms of official ruling.

Until errata'd, that's how I'd go in terms of RAI. I will FAQ it, since it should be stated for buff stacking purposes.

[Chris Kenney]

Since there's no type listed, there's no type. That makes it apply to all forms of AC, but not to CMD. That said, that doesn't make a whole lot of sense, but it's the RAW answer as near as I can tell.

[vip00]

Darksol the Painbringer wrote:

Pretty much this. I'd use Insight as a more official term (since I don't think there is an Intelligence Bonus to AC), but Insight bonuses apply to all concepts of AC, including CMD.

I've never personally handled the ability like this, but being a smart individually usually means the person has a lot of insight about them in regards to discovery and capability with knowledge and ingenuity, so the term "Insight" would be best in terms of official ruling.

Until errata'd, that's how I'd go in terms of RAI. I will FAQ it, since it should be stated for buff stacking purposes.

This seems to make the most sense to me. I have been interpreting it as dodge to avoid stacking issues, but insight does seem to make the most sense. (It won't stack with the 1 AC ioun stone then, but that's not a big loss)