It doesn't really address the question of whether or not Wall of Fog is an attack to my satisfaction, since the answer seems to be "It's an area attack, but it's not an attack".
CustServ really did not really say that. They said "It's an area attack, opps sorry, it's not an attack."
It wasn't until you drilled down into the rules that they realized that Area Effects without the Attack keyword are not attacks. In the case of Wall of Fog, it's an obstacle.
On the other hand, it seems to give the opposite answer to a previous CustServ response someone received on Seal of Binding, wherein the target was only immune to powers requiring attack rolls.
Yes it does conflict. Wall of Fire is not an Attack Check power (it does not have the Attack keyword and Hit in the text).
It is an attack. It is a Wizard Daily Attack power.
The other rep did not see the Attack keyword in the text, so he thought it was not an attack. This rep is correct. The other rep is mistaken. Seal of Binding makes the target immune to all Attacks, including the Daily Attack Wall of Fire.
All powers that are not Utility powers are Attack powers by definition. Most of the powers in the game are attack powers, even the ones without Attack Checks. Anything else opens up rules can of worms.
If you want to ask CustServ questions and get proper answers, you have to give them all of the details you have and let them make an informed decision.
Asking piecemeal gets you piecemeal conflicting answers.
You know that Hyp.
People in this thread are blaming CustServ on not having the right answer, but it's easy to make a mistake here.
But, it's real simple. Utility powers are not attacks. Utility Area powers are not attacks. At Will, Per Encounter, and Daily Attack powers are attacks, regardless of whether they have an Attack Check or not.
People really are making a mountain out of a molehill here, probably because of the Area Effect Attack section of the rules which forgot about Utility Area Effects. This is a slam dunk.
Note: "Even though these terms are called 'attack types', they apply to utility powers as well as attack powers."
This does not turn Utility powers into Attacks. It means that they can be melee, ranged, close, area, or personal.
Is there really a need to make this complex?