Can Mask of Foresight trigger multiple times in a battle, such as when a unit is moved out and back in with Ride the Wind?

Ruling: Mask of Foresight can trigger multiple times per battle, but only once per unit per combat. Attack and Defend triggers only apply the first time a specific unit gains the attacker/defender designation during a combat.

Sequence:

• When a unit first gains defender designation in a combat, Mask triggers
• If that same unit leaves and re-enters the battlefield during the same combat, Mask will not trigger again for that unit
• If attacking a second battlefield in a different combat (e.g., using Ride the Wind to start a new combat), Mask can trigger again

Nuances:

• The restriction is per unit per combat, not per turn
• Different units gaining defender status in the same combat will each trigger Mask once
• A new combat (even in the same turn) resets the trigger eligibility