One thing I noticed:
Closing and Sealing Gates
Occasionally, a game effect (Moving Gates, for instance) may make it possible to close a Gate either in a stable location or in the streets. A Gate may only be sealed when it is located on an unstable location. Gates in a stable location or in the streets can be closed, but cannot be sealed.
I take it this is a universal rule, rather than one specific to the expansion. Does this then mean that the Naacal Key is a little less useful?
