When a unit moves to an empty battlefield and then an opponent uses Ride the Wind to move a unit there during the showdown, who is the attacker and defender?

Ruling: The player who originally moved to the empty battlefield is the attacker, and the opponent who moved their unit there afterward is the defender.

Sequence:

• First player moves unit to empty battlefield, applying Contested status
• During showdown, opponent uses Ride the Wind to move a unit to that battlefield
• First player becomes the attacker (they applied Contested status)
• Opponent becomes the defender

Nuances:

• Contested status is applied when moving to any battlefield not under your control, including empty battlefields
• Combat only happens when both players have presence at a battlefield
• If the opponent's unit survives the combat, they will conquer the battlefield and score a point during the first player's turn