If you mean, is it destroyed when it 'levels up', then no. It is simply 'sent to the graveyard', it is not a 'destroy' effect and cards that look for or trigger from something being destroyed, will not activate.
Stardust Dragon negates and destroys the card it is used against. Prime Material Dragon can only be used against an effect that destroys a monster on the field. So, if Stardust Dragon is trying to negate a Dark Hole, then Prime Material Dragon cannot be used against it. But if it is trying to destroy a Dark Armed Dragon, then Prime Material Dragon can be used against Stardust Dragon in this case.
Galaxy-Eyes Photon Dragon will more than likely be destroyed, as it has a lower ATK. GEPD has an effect that can banish itself and whatever it battles with. However this effect targets the opposing monster, and Obelisk cannot be targeted. Therefore this effect cannot be used and GEPD will die unless something else is used.
When the card is destroyed, the effect is no longer in effect. Once a card is in the graveyard can not be used unless specifically stated on that card.
If the opponent activates a card that will destroy one or monsters on the field on resolution, then you can pay 1500 to activate My Body as a Shield. MBaaS will negate that destruction effect, so it will not resolve. Simple scenarios involve Lightning Vortex, Mirror Force, Exiled Force, Dark Armed Dragon, Judgment Dragon, etc. As long as at least one monster will be destroyed on resolution, then MBaaS can be used to stop it.
Divine Wrath can be used against monster effects that activate. Marshmallon has an activated effect that deals damage, Man Eater Bug has an activated effect, as does Penguin Soldier. All can be stopped with Divine Wrath. Marshmallon also has a continuous effect that stops it being destroyed by battle, and Cyber Dragon has an inherent special summon effect. Neither of these activate, so Divine Wrath can't be used against them.
Stardust definitely. Not only is its effect better, but it is also used for the synchro summon of majestic star dragon. red dragon archfied is good if you're facing stardust because the only way it can be destroyed is by battle
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.
yes star dust dragon can use its effect anytime in the game unless you have used one of your spell or trap cards or effectd
The legal effect monster version of Ra is very vulnerable. The only protections it has, is that its Normal Summon can't be negated, nor can its summon be responded to by any other effect apart from its own effects. So this gives it protection from Solemn Judgment, or Bottomless Trap Hole, and similar. However it can freely be destroyed by any other appropriate effect, or by battle. Lightning Vortex, Zaborg the Thunder Monarch, Mirror Force, Dark Armed Dragon, Judgment Dragon, etc, all have effects that can destroy it. Torrential Tribute can destroy it too, but only when used in response to another monster's summon since Ra's summon can't be responded to by anything other than itself.
Tele-DAD Refers to Teleport Dark Armed Dragon, more specifically emergency teleport. The deck usually uses destiny draw, alure of darkness, destiny hero malicious, dark armed dragon, and emergency teleport to quickly summon stardust dragon for defense and dark armed dragon for attack, although other syncros are often used, the deck in incredibly fast and powerful and was the main metagame deck in 2008, to prevent it's abuse limits were imposed on dark armed dragon and e-teleport and the deck is expected to be used less in 2009, although it remains a powerful deck and will likely still be part of the metagame.
Yes, it can. However Bottomless Trap Hole is a card that destroys, so Stardust Dragon can be used to negate it, even if it was used in response to Stardust Dragon's own summon. The Bottomless Trap Hole will be negated and destroyed in that case.
Since dark illusion is a monster card it is destroyed by raigeki without it's effect coming into play.Same as if a face down effect monster were to be destroyed by raigeki the effect of the card could not be used so any face down effect cards or any effect cards on your side of the field are rendered useless.