I think he is asking other thing. As he said in the comments, he wants to hit a stone that temporary gives the character's weapon more damage. After a time, he wants to reset that damage. He is reseting the damage of the weapon from the stone, but when the stone is cleared, it doesnt reset it anymore, ofcourse, because it was freed.
Thats why some of us suggested he should reset the damage from the weapon itself, instead of trying to reset it from an object that can be cleared.