Forum:Effects that reduce opponent's monsters attack

So here is my doubt. I have in my deck at two cards that reduce the attack and defense of my opponents monsters, being Performapal Swordfish and Wall of Disruption.

To Performapal Swordfish effect, especially its second effect that activates all the monsters loose 600 Attack and Defense after I Special Summon monster(s) and I have a Pendulum deck. Mt first question is: Does its second effect applies for every monster I Pendulum Summoned?, or Does Pendulum Summon only counts as one summon?

As for Wall of Disruption, I know that it only loose 800 for every monster my opponent control.

However,the next question applies to both of the cards already mentioned, and it has been a topic of discussion every day I duel, and is does the attack and defense of the monsters, affected by both cards already mentioned, resets back to its original attack and defense after been destroyed and sent to the graveyard or face-up to the extra deck?, or do they are still affected for the rest of the duel?

I will appreciate the feedback. Flamel 78 (talk • contribs) 20:51, April 14, 2016 (UTC)