Okay I was battling a friend and he had a Mandibuzz with a special darkness energy attached and he used blindside which states "Does 50 damage to 1 of your opponets pokemon that has any damage counters on it" against my non damaged active Torterra and he said it does 10 damage because the special dark energy says "If the Pokemon Darkness energy is attached to attacks the attack does 10 more damage to the active Pokemon". He said the attack did 0 damage then + 10 so 10 damage. But I said since I dont have damage on it he can't attack PERIOD. Which of us is right? Then what if he had a expert belt as well?