Talk:Ayase "Moonlight Transformation" Sieger/@comment-4020513-20180510024556/@comment-3211055-20180510054148

No. Once you choose something as an attack target, the target is locked and cannot be changed until the end of battle. In your case, your attack simply did nothing since the attacked Z/X has left the Square.

For reference, here's an excerpt from the Battle Damage Step section in article about battle.

"During this step, if either the attacking Z/X or the Z/X targeted for attack does not exist in Square anymore, nothing happens and the battle proceed to the next step."