Yes, it does not target, so can destroy Obelisk, and will destroy Ra too if his ATK is high enough.
in2006
In my opinion it would be a gold rare crush card virus.
similar cards would be eradicator epidemic virus and deck devastation virus.
It is forbidden in Advanced format, and limited to one in Traditional.
I'm going to assume you mean Crush Card Virus. How it works is you tribute a dark attribute monster you control that has 1000 or less attack, such as a Saggi the Dark Clown or Yubel, and then you look at all the monsters your opponent has on their side of the field (face up and face down), all the cards in their hand, and all the cards that they draw until their third draw phase after you activated Crush Card Virus and you destroy all of their monsters that have 1500 or more attack points.
in2006
mirror force crush card virus trap hole sakeretsu armour
No, it doesn't destroy any of its controller's monsters, only the opponent's monsters. (It requires a monster to be tributed as a cost, but this is not 'destruction'.)
As long as you are in the Battle Phase, then yes, you could use Trap Jammer against Crush Card Virus.
Pay an insane amount of money for it...
get a yugioh gold series, collectors pack, open it, then the sub-box in the middle will have crush card virus in it. Return the other mini-boxes, if the store keeper allows.
In my opinion it would be a gold rare crush card virus.
Sorcerer of Dark Magic has a Quick Effect that can be chained to any spell speed 2 Trap card (meaning he can't stop a Counter Trap). So when Crush Card Virus is activated, he can chain his effect to it. His effect will resolve, negating the activation and effect, meaning Crush Card Virus does not resolve - nothing is destroyed.
similar cards would be eradicator epidemic virus and deck devastation virus.
It is forbidden in Advanced format, and limited to one in Traditional.
You can chain Spell Speed 2 or 3 effects to Dark Hole. Crush Card Virus is Spell Speed 2, so yes, you can chain it to Dark Hole's activation.
I'm going to assume you mean Crush Card Virus. How it works is you tribute a dark attribute monster you control that has 1000 or less attack, such as a Saggi the Dark Clown or Yubel, and then you look at all the monsters your opponent has on their side of the field (face up and face down), all the cards in their hand, and all the cards that they draw until their third draw phase after you activated Crush Card Virus and you destroy all of their monsters that have 1500 or more attack points.