Card Rulings:Number C69: Heraldry Crest of Terror


 * "This card gains the effects of all Xyz Monsters your opponent controls that were negated by this card's effect that activate their effects by detaching an Xyz Material(s) from that card.": This effect can steal the Xyz Material-detaching effects of all Xyz Monsters that were negated by this card's upon-Summon effect, but they can only be activated if your LP are 1000 or less.