Gravity Collapse …
 
It does what it does, and it does it fairly well. As a counter trap, it’s the fastest thing u’ve got to rely on in this game, so very few things can stop it. As it negates the summon of a monster (be it normal or special), it keeps opponents from getting any trailing effect by that monster by its summon (yes, I’m talking to you – Monarchs and Stardusts and Black Roses and such)
 
The only crapside is that u have to give up a Synchro monster to do it. Either A) u don’t HAVE a Synchro, so it’s a dead card in hand or on field, or B) u worked hard to bring out ur Synchro so u actually WANT it to stick around and NOT sack it in order to activate this trap.
 
That being said – not only does it shut down the monster summoned, but it keeps your opponent from summoning anything else this turn, which is good … although they can still set something, so …
 
Yeah.
Overall – it’s just an average card.
You probably shouldn’t bother.
 
Traditional: 2/5
Advanced: 2.5/5
 
- FREEZA

Hey, Pojo, Assailant here with your Card of the Day, which today happens to be Gravity Collapse. This is a rather interesting card, it allows you to negate the summon of an opponent's monster AND they can't summon for the rest of the turn. That means ANY kind of summon. Special, normal, ritual, flip, summon bunnies out from a hat, whatever it may be, it says no to them all. Now I know what you're all saying; "But we liked the bunnies." Well that's too bad. This card doesn't care. But here, as with most cards like this, is the catch: you must send one face-up synchro monster you control to the graveyard.
Now, while that is a somewhat hefty price, there are many circumstances where it would be affordable. The real problem here is having a synchro monster on the field at the exact same time you have this card. I generally don't like cards that are completely dependent on another card to even play. Especially when it's a card that you will only probably have on the field. So for the majority of decks I'd say this card is too chancy.
On the other hand, it must be said that those decks that synchro summon out the wazoo (X-Sabers, Junk Synchro) might actually find this card playable. Maybe.
 
Advanced: 3/5
Traditional: 3/5 (I'm thinking there's a lot more synchro power in traditional)
Art: "Moria... You fear to go into those mines. The dwarves delved too greedily and too deep. You know what they awoke in the darkness of Khazad-dum... shadow and flame. "-Saruman

Here we have Gravity Collapse. Which is crap. Whenever your opponent summons a monster you send a synchro monster you control to the grave to negate and destroy the monster summoned. Also your opponent cannont summon untill the end phase of this turn.

Now this would be a good card if it was any monster, because then you get crazy combos with Sangan and other such cards. But synchro monsters are a -2 as it is, and just blowing the synchro monster as a cost to negate a summon isnt worth it. The only time it would be worth it is if your opponent summoned Cauis and was going to remove the synchro from play anyway.

Traditional-1/5
Advanced- 1/5
Art- This actually looks more like an Earthquake then Gravity Collapsing, though I dont know what that would look like.