XD oddly enough, I know where the verse IS just not the exact one. it is when the isrealites packed up the tabernacle and followed the pillar.
This one maybe?
And when the cloud was taken up from over the tabernacle, the children of Israel went onward in all their journeys:
Exodus 40:36
Maybe make it like this:
Following the Pillar, 3/2 Green/Gold GE
-X equals the number of OT Heroes in play-
If used by an OT Hero, set aside an opponent's Fortress for X turns, or until a good dominant is played except during a battle. Negate all special abilities on that Fortress. Cannot be prevented.
Exodus 40:36
This is assuming the new rule that identifier hold abilities are considered special abilities (per the new REG) takes effect.