Dark Smog

 Goldd, Wu-Lord of Dark World and Ryko, Lightsworn Hunter appear in this card's artwork.

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Dark World Brainwashing appears to continue the events of this card's artwork.

TCG Rulings

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{{RulingFlagged">TCGJudgeProgram =
When you initially activate a Continuous Trap Card that has an activated effect, you may activate that effect at the same time the card itself is activated. This is similar as to how you can pay 800 Life Points to negate a Special Summon when you initially activate "Royal Oppression". So, when you initially activate "Dark Smog" in chain to the opponent's "Monster Reborn", you would activate the card and state that you are also activating the effect.: Dark smog Vs. Monster reborn

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OCG Rulings

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You can activate this card and its effect in the same chain.: Dark Smog

Neither this card nor its effect can be activated during the Damage Step.

Upon activating its effect, this card targets 1 monster in the opponent's Graveyard.

"Dark Smog" cannot be activated during the Damage Step. Also, the effect of an already active Dark Smog cannot be activated during the Damage Step.: Can "Dark Smog" be activated during the Damage Step?
Also, can the effect of an already active "Dark Smog" be activated during the Damage Step?

Even if at the time of the resolution of the effect of "Dark Smog" the targeted monster is no longer in the opponent's Graveyard, the effect to discard 1 Fiend-Type monster from the hand is still applied.: If at the time of the resolution of the effect of "Dark Smog" the targeted monster is no longer in the opponent's Graveyard, is the effect to discard a card still applied?