If I have a unit controlling a battlefield and my opponent attacks it, can I Ride the Wind it to base (leaving no units there) and then Ride the Wind it back onto the battlefield to score it?

Ruling: No, under current rules you cannot score in this situation. You do not lose control of the battlefield until combat ends, so when you Ride the Wind your unit back to the battlefield, you are still the defender and still control that battlefield, which means you cannot score.

Nuances:

• The initial answers in this thread were based on old rules (pre-October 25th) where this would have worked
• Under old rules, you would have been able to score because leaving the battlefield would have caused you to lose control immediately
• The showdown does not end until both players pass focus in a row without playing an action