When do you choose targets for Falling Star's damage, and how does this interact with En Garde?

Ruling: You choose targets for Falling Star when you play it, but damage is allocated when it resolves. This means the opponent can see which units are targeted before deciding whether to use En Garde.

Sequence:

• Play Falling Star and declare targets (e.g., unit A for 3 damage and unit B for 3 damage, or unit A for both instances of 3 damage)
• Opponent can react with En Garde or other responses based on the declared targets
• Falling Star resolves and deals the damage to the targeted units

Nuances:

• You can target the same unit with both instances of 3 damage to ensure it dies
• The opponent can see your targeting choices before deciding whether to use En Garde, allowing them to avoid wasting protection on a unit that would die anyway