Another pro is that your opponent will likely use their spell/trap destruction cards on this to get access to their cards again so it acts like a cyclone lightning rod so to speak, protecting your other set spells/traps
I love going first and setting this thing, then seeing the other guy set two cards which 9 times out of 10 are Wall of Disruption and/or Enemy Controller. It's so satisfying to lock down those overused meta cards and just PUNISH.
No, this only can only stop them from being activated it cannot negate the effect you'd have to use it before they activate which is what makes this card not too great because everything meta is quick-play or can be activated as you use this.
This card is pretty dumb to me, I have three and thought it would work great. It says "The selected Spell or Trap Cards cannot be activated." Which is a lie because righ after I selected two set cards they activated on. Which is beyond dumb. IDC if they are quick play chain or not. It states they can not be activated and literally right after you activate this card they can activate theirs. This card should say activate this card to select two set spell/trap cards your opponent controls. Your opponent must activate them now or will not be able to activate them. Because that's what it really does.
Chains work bottom up so your card activates last in the chain,Even though you activated it first...
Counter traps like "counter counter" or "double snear" will stop that them chaining or even bait out there chain.
Almost no card can chain after a counter trap
Unless the card says something like "If the card leaves the field, destroy this card", it's going to stay. Then you'll have a dead S/T zone that you'll need to clear with Twister or the like to use. Just like if you Tribute a monster Summoned by Powerful Rebirth.
So I'm using this card against Arkana to block him from using his Dark Renewal on my final pirhanna summon (vs. lvl40), or using his Spell Shield when I try de-spell or Twister against his Ectoplasmer (vs. lvl30).
And I noticed a super interesting glitch -- Sometimes when playing this card, it actually shows me what his face down cards are !
It seems to only happen when I've already seen him play a card that he has multiple copies of. For example see this screenshot, I used a de-spell on his Anti-Magic Arrows, then several turns later use Xing to lock down 2/3 of his remaining face-down cards, and it SHOWS me that he put another Anti-Magic Arrows down, making it easy for me to just pick his other two cards. trolololol.
That's not a bad thing...Anon seemingly talking in place of Andrew, especially if you only have 1 Ceasefire(possible last card dilemma) or no cards you can sac for the Discard. I always have 2; 1st catches whatever 2 cards it can immediately, 2nd locks the 3rd while relocking another. Oh yeah, you can overlap the locks.