Yes, it remains on the field and can attack as long as your opponent does not activate another effect.
Yes. Most negation effects like Light and Darkness Dragon, and Stardust Dragon, can be used in the Damage Step, which is where Newdoria triggers. Stardust Dragon can indeed be used against Newdoria's activation.
For every dragon type monster on the field it gains 500 attack points
Yes, it can. Dark Hole is an effect that destroys monsters on the field, so Prime Material Dragon can negate it.
Yes. Stardust Dragon itself is a monster, there is no requirement for the opponent's destruction effect to try to destroy an 'other' monster, just one that tries to destroy Stardust Dragon itself will do.
You are certainly allowed to activate the attack doubling effect, but don't forget that when Darkblaze Dragon left the field, the original boost was lost. So when it returns to the field, using its effect will put it back on 2400ATK, not increase it up to 4800.
Yes. Gandora's Ignition Effect is a destruction effect, so you can chain Stardust Dragon to it, to negate and destroy it.
You will be able to use its effect while you control "D.D. Survivor" and/or "D.D. Scout Plane". The card's effects will banish then and it will return to the field.
Yes. Most negation effects like Light and Darkness Dragon, and Stardust Dragon, can be used in the Damage Step, which is where Newdoria triggers. Stardust Dragon can indeed be used against Newdoria's activation.
When Stardust Dragon uses its effect, it is 'tributed', which is not a destruction effect. Because it leaves the field, it means Premature Burial loses its target, so Premature Burial will go to the graveyard too. It will not inflict a destruction effect on Stardust Dragon.
Stardust Dragon can only chain to destruction effects that activate. The destruction effect on Venom Swamp that destroys monsters it reduces to 0 ATK, is not activated. It is a continuous effect, and can't be chained to, so Stardust Dragon cannot negate it.
Tuner's Scheme has a destruction effect, but it does not 'activate'. Stardust Dragon's negation effect can only chain to destruction effects that activate, so it can't be used against the destruction caused by cards like Tuner's Scheme or Call of the Haunted. Stardust Dragon may also not stop Tuner's Scheme's initial resolution. While it does have a destruction effect on one part of the card, Stardust Dragon can also only be used against an effect which will destroy something on resolution.
Majestic star dragon becuz this card can negate savior demon dragon's effect, treat is as its own then, and use it to gain Demon dragon's attack then attack and kick butt. It is true majestic star dragon can negate savior demon dragon`s effect copy his effect and then majestic star dragon`s attack will be 7800 or more. (4000+3800=7800). not so fast majestic demons dragon can also negate the effect and take all majestic star dragons attack points
It depends. When Elemental Hero Absolute Zero leaves the field, it triggers his destruction effect. Since it is a destruction effect, that same Stardust Dragon can activate, tributing itself to negate the effect. So basically, it's up to Stardust Dragon's controller whether he lets it get destroyed or not.
Nope.
For every dragon type monster on the field it gains 500 attack points
It does not have an effect but its description is `This legendary dragon is a powerful engine of destruction. Virtually invincible very few have faced this awesome creature and lived to tell the tale.`
Majestic Star Dragon says if the negated effect can be activated, then Majestic Star Dragon may activate it once as its own effect. The ability to attack directly on an Earthbound Immortal is a continuous effect. Because it is not 'activated', Majestic Star Dragon can't copy it.