Stardust Dragon/Assault Mode

This card cannot be Normal Summoned or Set. (C) This card cannot be Special Summoned except with its own effect or with Assault Mode Activate. (1) You can Tribute this card to negate the activation of a Spell Card, Trap Card, or Effect Monster's effect, and destroy that card. (2) If you negate an effect this way, you can Special Summon this card from your GY during the End Phase. (3) When this card on the field is destroyed, you can Special Summon 1 Stardust Dragon from your GY.

• The (C) Condition cannot be negated. It must first be Special Summoned by Assault Mode Activate.
• You cannot Special Summon this card with Call of the Haunted, only its own effect.
• The (1) Quick Effect activates & resolves on the field.
• Tributing Stardust Dragon/Assault Mode is a cost.
• This negates the activation of a card / effect, even in the Damage Step [REF1, REF2, REF3].
• This includes Ignition-like Effect (ex: Blaze Accelerator), Quick-like Effects (ex: Skull Lair), and Trigger-like Effects (ex: Blast with Chain).
• This effect CAN be activated if Deck Devastation Virus would destroy a face-up monster.
• This effect CAN be activated if Skull Lair's effect is used when it is activated (played face-up).
• This effect CAN negate Royal Oppression's effect if it would destroy a card on the field (ex: Deep Sea Diva / Instant Fusion / Call of the Haunted).
• This effect CANNOT negate Royal Oppression's effect if it would negate a Contact Fusion / Synchro Summon / Special Summon (ex: Chaos Sorcerer).
• This effect CANNOT be activated when Blaze Accelerator is activated (played face-up).
• This effect CANNOT be activated if this card is destroyed by Battle, even if Red Dragon Archfiend activates its effect in Substep 5 - After Damage Calculation.
• The (2) optional Trigger Effect activates during the End Phase ONLY if: Stardust Dragon/Assault Mode successfully resolved its (1) effect this turn, and Stardust Dragon/Assault Mode is in your GY.
• If your opponent controls your Stardust Dragon/Assault Mode and they use its (1) effect, during the End Phase you can Special Summon it from your GY via its (2) effect.
• If this effect is negated (by Royal Oppression / Divine Wrath), Stardust Dragon/Assault Mode remains in the GY and cannot activate this effect again [REF].
• If your Defense Position Stardust Dragon/Assault Mode is attacked by Red Dragon Archfiend and it is destroyed by battle, its (1) effect cannot be used to negate the effect of Red Dragon Archfiend that destroys your Defense Position monsters.
• The (3) optional Trigger Effect targets a Stardust Dragon in your GY.
• Even if a face-down Defense Position Red Dragon Archfiend/Assault Mode etc. on the field is destroyed by a card effect, you can activate its effect that Special Summons Red Dragon Archfiend etc. from your GY (this ruling also applies to Stardust Dragon/Assault Mode).
• Even if Red Dragon Archfiend/Assault Mode etc. is destroyed and banished, you can Special Summon Red Dragon Archfiend etc. from your GY (this ruling also applies to Stardust Dragon/Assault Mode).
• Even if a Red Dragon Archfiend/Assault Mode etc. in the Spell & Trap Zone that is treated as an Equip Card is destroyed, you can Special Summon Red Dragon Archfiend etc. from your GY (this ruling also applies to Stardust Dragon/Assault Mode).
• If a Red Dragon Archfiend/Assault Mode Special Summoned by Assault Revival is destroyed and banished, since its effect that activates when it leaves the field is not negated, you can Special Summon Red Dragon Archfiend (this ruling applies to Stardust Dragon/Assault Mode).