According to the anime, "X000" refers to the number of cards the owner of Slifer the Sky Dragon has. That number replaces the "X" to represent the ATK.
In reality, "X000" is not a legal ATK value and will most likely be replaced by a "?" if an Effect Monster version of Slifer the Sky Dragon is ever made. A "?" means that the card's ATK cannot be determined without the use of an effect. Therefore, according to TCG/OCG Rulings, that card (Slifer the Sky Dragon in this case) cannot be searched out in the Deck via cards that depend on ATK of DEF values (such as Sangan or Witch of the Black Forest).
It depends. Slifer the Sky Dragon has the potential to be WAY better then than Obelisk, but if you have a low amount of cards in your hand, it can be quite weak. I would use Obelisk, because the attack and defence of that card won't change, Slifer's will.
Obilisk the Tormentor, Slifer the Sky Dragon, and Wing Dragon of Ra.
Yugi received Slifer the Sky Dragon from Strings per the guidelines of the tournament that each Duelist must ante their most valuable card.
There is currently no game-legal print of Slifer the Sky Dragon. Obelisk has a TCG and OCG print, Ra has an OCG print, so there will eventually be a legal Slifer.
None. Considering that Slither is not a sky dragon. Slithering is the way snakes move about. Its a YU-GI-OH! card If I remember correctly, But he means Slifer The Sky Dragon. Funny joke though (Ba Boo Tsss). I looked it up and all it says is X000 attack and X000 defense
Slifer the Sky Dragon does not have an official passcode.
There is currently no game-legal version of Slifer the Sky Dragon.
The theme song for when Yugi summons Slifer the Sky Dragon in the Pyramid of Light is called Slifer The Sky Dragon Theme.
You do the titan firestorm attack by sacrificing both the winged dragon of ra and slifer the sky dragon.
He gains 1000 points for every card in your hand
Slifer The Sky Dragon goes up to $75
Because there are no official rules for the Egyptian God cards, the only reliable way to destroy "Slifer the Sky Dragon" would be to destroy it in battle with a monster with equal or greater attack. This can be accomplished by using "Honest" while attacking/ being attacked by "Slifer", discarding cards from your opponent's hand to lower its attack, and more.
His attack is X000. He gets 1000 POINTS from the number of cards you have in your hand. :)
if you sacrifice ra and slifer while obelisk is on the field obelisk wood have infinite attack and nothing can stop him
It depends. Slifer the Sky Dragon has the potential to be WAY better then than Obelisk, but if you have a low amount of cards in your hand, it can be quite weak. I would use Obelisk, because the attack and defence of that card won't change, Slifer's will.
Obilisk the Tormentor, Slifer the Sky Dragon, and Wing Dragon of Ra.
it starts with 0 attack point but for every card you hold in your hand it gains 1000 attack points