Effect
When an opponent's Xyz Monster declares a direct attack: Special Summon 1 LIGHT Dragon-Type Xyz Monster from your Extra Deck in Attack Position, then the attacking monster attacks it instead, and you proceed to damage calculation. Its ATK becomes equal to the attacking monster's, also its effects are negated. You can only activate 1 "Double Dragon Descent" per turn.
You cannot activate this card if there is no Dragon-Type, LIGHT Attribute Xyz Monster in your Extra Deck that can be Special Summoned.
You can also activate this card when your opponent's Xyz Monster declares a direct attack while a monster is present on the field.
The effect of this card will proceed to damage calculation. (A replay does not occur.)
The effects of a monster Special Summoned by this card's effect that are activated or applied on the field are negated, but effects that activate in the Graveyard or elsewhere are applied normally.
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