If you control Zaun Warrens on your turn, then move all units back to base (e.g., with Flash), can you send another unit back to Zaun Warrens and get the conquer effect even though you already scored the hold point that turn?
Ruling: No, you cannot get the conquer effect again. You can only score each battlefield once per turn, and to conquer you must be able to score.
Nuances:
- Even if you leave and return to a battlefield in the same turn, you cannot trigger conquer effects again if you already scored that battlefield