Does Mask of Foresight trigger multiple times in a turn if the same unit participates in multiple combats, allowing it to gain +2 or more total?

Ruling: Mask of Foresight triggers once per combat per unit. If the same unit participates in multiple separate combats in the same turn (e.g., attacking alone, conquering, then attacking alone at another battlefield), it gains +1 each time for a cumulative total that lasts until end of turn.

Sequence:

• When a unit attacks or defends alone, Mask of Foresight triggers and goes on the chain
• The unit gains +1 until end of turn
• If that same unit participates in another combat alone later in the turn, Mask triggers again
• The unit gains another +1, for +2 total (the bonuses stack)

Nuances:

• This is a triggered ability (uses "when"), not a passive, so it goes on the chain
• The trigger occurs when a unit "becomes an attacker" or "becomes a defender"
• Moving a unit around within the same combat does not trigger it multiple times - it only triggers once per combat per unit
• Removing other units after attackers/defenders are declared does not retroactively trigger Mask (it's too late)
• Different units attacking/defending alone in the same combat each get their own +1