Quote Originally Posted by Grumman View Post
Personally, I feel the intent is pretty obvious. The feat should not modify any lasting visible effect, magical or otherwise. Anything that lasts longer than the casting time is visible, be it damage, a magical wall or non-magical wall.
Certainly that was the intent, but doing that makes the spell sorely limited.

That makes me think of instantanious conjurations, maybe I need to reword the 'permanent effects' line somehow.