@LOKOS... Each monster can only attack once per turn unless specified by a card effect, right? So if you have to attack utopia, you wouldn't be able to attack again, but utopia would be gone. Right?
if you opponet attacked utopia you take no battle damage and he cant attack with that same mosnter unless he played a card that allows him to attack again
Mimgrim you are wrong, since utopia destroys itself when it is targeted for an attack, a replay occurs because the attack target is no longer on the field. It is like when WU rabbit banish's itself when it is targeted for an attack. So whoever attacked utopia will get to select a new attack target