"If this card battles with your opponent's monster, you can destroy that monster after damage calculation. This effect can only be used once while this card is face-up on the field."
now then it says after damage calculation, i would figure that since monsters don't get destroyed until the end of damage step, that he would be able able to get his effect, even if he is destroyed at the end of the damage step. can someone clear this up for me because i have been hearing from several people that because he is destroyed by battle he doesn't get his eff, but he would still technically be on the field after damage calculation since that time would be before the "end of damage step" sub-step.
so can any confirm or correct me on this card effect?