Facebreaker

Q: In a showdown, I play <<Facebreaker>> that targets my friendly unit and an enemy unit on the same battlefield. My enemy reacts with a spell that kills my friendly unit. After all spells have resolved, is the enemy unit stunned?

Rules for Context - 359.3.e.2.

A: Yes

Facebreaker: one target removed before resolution

'Stun a friendly unit and an enemy unit at the same battlefield.'

• 'At the same battlefield' is a targeting restriction verified at finalization (CR 355.11.a). When Facebreaker is Finalized, both units are at the same BF. Legal.

At resolution, each target's legality is checked individually. If one target has been removed (moved, killed, etc.), it is illegal and remains unaffected (359.3.e.5). Per 359.3.e.8, the instruction executes on the remaining valid target. The remaining unit is stunned. This is DAMAYC (Do As Much As You Can).

If both targets have become illegal, the instruction does not execute. No unit is stunned, the spell resolves with no effect but is still considered played.

WHAT THAT MEANS

If one target is removed before resolution, the spell can still resolve. The remaining valid target is stunned. Here something moved, so we have two remaining subsets, and the player needs to choose one, this is not a mistarget. A mistarget only occurs if both targets become illegal. If there is a choice to be made, because one of the units would somehow be moved to another BF in response, the player would then have a choice of which unit to Stun, because each unit individually are at the “same” BF.