If I play Ride the Wind onto a battlefield my opponent moved into first during their turn at showdown action speed, do I become the defender or attacker? Can I become the defender on my opponent's turn?

Ruling: You would become the defender because your opponent was the player who applied the Contested status to the battlefield.

Nuances:

• This allows you to become the defender on your opponent's turn by using Ride the Wind at showdown action speed after they move into a battlefield first.