Forum:Help with Giant Orc

Help with Giant Orc

In the turn of my opponent, he summons Orc and attack and then by its effect its change to defense position. Then in my turn when I do something, my opponents activate skill drain and he said that negates la effect of his Orc and have to change to attak position in my turn!!!!!!! and I said that he have to wait until his turn to do that.

Who have reason? If i have reason, how can I explain to my frien that his incorrect?

Thanks