It can't negate continuous 'effects' because it has to chain to activations. Continuous effects do not activate.
It can chain to and negate the activation of a continuous spell or trap. If the continuous spell or trap has its activation negated, then the card is destroyed and goes to the graveyard.
Marshmallon has a Trigger Effect that deals damage and a continuous effect that prevents it from being destroyed by battle. If a face-down Marshmallon is attacked, it will first be flipped face-up. You will then calculate damage - unless LaDD's ATK has been reduced severely, more than likely no damage will be dealt. If LaDD's attack is higher, it doesn't matter as Marshmallon cannot be destroyed by battle. Marshmallon's effect will then trigger, Light and Darkness Dragon will chain to it and negate it, so no damage is dealt. Note that Light and Darkness Dragon does not destroy the cards he negates, so Marshmallon will remain on the field. Also note that Light and Darkness Dragon can do nothing to continuous effects as they do not 'activate'. That means he can do nothing against Marshmallon's battle protection.
Yes, Battle Fader's effect is a trigger, activated in hand when an opponent's monster declares an attack. Light and Darkness Dragon will chain to and negate this, meaning Battle Fader is not summoned and the battle phase does not end. Note that Light and Darkness Dragon does not destroy the cards it negates, so Battle Fader will remain in hand. It can be activated again when the next attack is declared.
Dragon's Roar Structure Deck
Rainbow Dark Dragon is a secret rare in Phantom Darkness.
From Dragon's Roar Structure deck
It negates. Light and Darkness will negate all cards, yours or your opponents. Only restrictions: It can't negate two in the same chain, and it can't negate counter traps.
Marshmallon has a Trigger Effect that deals damage and a continuous effect that prevents it from being destroyed by battle. If a face-down Marshmallon is attacked, it will first be flipped face-up. You will then calculate damage - unless LaDD's ATK has been reduced severely, more than likely no damage will be dealt. If LaDD's attack is higher, it doesn't matter as Marshmallon cannot be destroyed by battle. Marshmallon's effect will then trigger, Light and Darkness Dragon will chain to it and negate it, so no damage is dealt. Note that Light and Darkness Dragon does not destroy the cards he negates, so Marshmallon will remain on the field. Also note that Light and Darkness Dragon can do nothing to continuous effects as they do not 'activate'. That means he can do nothing against Marshmallon's battle protection.
Yes, Battle Fader's effect is a trigger, activated in hand when an opponent's monster declares an attack. Light and Darkness Dragon will chain to and negate this, meaning Battle Fader is not summoned and the battle phase does not end. Note that Light and Darkness Dragon does not destroy the cards it negates, so Battle Fader will remain in hand. It can be activated again when the next attack is declared.
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.
Red-Eyes Darkness Metal Dragon's own summon does not use the chain. Because nothing is activating, there is nothing for Divine Wrath to chain to - Divine Wrath negates 'activations' of monster effects. Red-Eyes Darkness Metal Dragon's effect to special summon other dragons though is an Ignition Effect, which is a form of activated effect. This can be negated using Divine Wrath.
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.
it's an opinion. stardust negates red dragon archfiend. stardust dragon protects card. red dragon archfiend clears the field for you. destruction or protection. it's your choice.
Tyrant Dragon negates and destroys Trap Cards that target it. Trap Hole does target, so Tyrant Dragon is not affected by it.
The Dragon of the Darkness Flame is on his right arm.
Light and Darkness Dragon will be switched into defense position. There is otherwise no interaction.
If you special summon a Totem Dragon, and then tribute it for Red Eyes Darkness Metal Dragon, then Totem Dragon goes straight from field to the removed from play zone. It never hits the graveyard, and is therefore never a valid target for Red Eyes Darkness Metal Dragon's dragon summoning effect.
Red-eyes Darkness Metal Dragon cannot be played from your deck,but only from your hand