Forum:Cancelling an attack

is it legal for a player to cancel an attack once they have declared it? i don't mean by using a spell/trap card or other effect. example: player A attacks with dark magician, player B activates mirror force so then player A decides they want to cancel the attack because their monsters would get destroyed.

Wemic (talk • contribs) 14:59, January 23, 2011 (UTC)