[quote=@LunarStandard]
<Snipped quote by Xeiyenreisha>

The ruling's [url=http://yugioh.wikia.com/wiki/Card_Rulings:Light_and_Darkness_Dragon]here[/url] if you don't want to take my word for it and would rather have something more official.

"The effect of "Light and Darkness Dragon" only activates when a Spell/Trap Card is activated from the hand or flipped face-up. It cannot be activated when the effect of a Continuous Spell Card, Continuous Trap Card, "Ojamagic" or a Spell Card sent to the Graveyard by "Destiny HERO - Diamond Dude" are activated."

EDIT: Already done, Eklispe.
[/quote]

I remember using that card on PSP Yugioh games and it was always a pain in the ass to use effect cards, because it would negate them. I know how that card works, because I've used it before so I don't need an explanation about it. It is probably one of the better dragon cards you can find despite the fact it is a double-edged sword when you summon it.

Already know what effects it can't negate. Jinzo a a prime example of what it CANNOT negate since Jinzo's anti-trap effect is continuous. As I said, I do not need an explanation on how that card works. I've used it before. Treeborn Frog is another example of what it cannot negate.

Skill Drain is one way to defeat its effect before someone special summons it to the field.