John Rowley's page

To clarify, is your GM saying that you have to choose to cast the spell before you know if the attack hits or you have to tell your GM you are going to cast the spell before he physically rolls the dice (as opposed to just not reveling the number shown).

If it's before he tells you if it is a hit or miss, I would say yes.

If it is before he physically rolls... He needs to give you a chance to tell him if you are going to cast after he announces the attack.

He wants me to declare before he tells me the result.

I was just hoping to munchkin it and cast the spell after his attack hits.... Alas I guess the power gaming will have to take a break for once.

So, my GM says that when I cast Windy Escape as an immediate action, that I have to do so before the attack has been rolled. It doesn't state anywhere in Windy Escape that this is true, or in the section for Immediate Actions (to my knowledge).

Is this RAW, or RAI?