Forum:Hammer vs book of moon

what if i activate hammer shot and there is 2 monster on the field in attack position.one is my opponent monster with the highest atk and one in my side of the field.then my opponent activate book of moon to flip his monster into face down.will hammer shot destroy my monster because it is the only one in face up attack position?Heijkl (talk • contribs) 07:43, February 26, 2012 (UTC)