If I have two units on the battlefield and Mask of Foresight, and during a showdown I use Fight or Flight to remove one unit, does the remaining unit get the Mask of Foresight +1 buff?

Ruling: No, it is too late. The unit does not receive the Mask of Foresight buff.

Sequence:

• When the showdown is initiated, attacker/defender designations are assigned
• At that moment, the unit was not alone on the battlefield
• Fight or Flight happens after designations are assigned
• The Mask of Foresight buff is not applied because the unit was not alone when it received its designation