If Pokemon with white smoke uses shell smash?

Question

Torkoal has white smoke as his ability. If he were to use shell smash would that also lower his defenses?

Answer 1

Yes. And the same goes for any other similar ability. If White Smoke Torkoal uses Shell Smash, it's defense is lowered. If Clear Body Metagross uses Hammer Arm, it's speed is cut.

Source: Experience