3 Level 4 monsters
If this card is Special Summoned: Negate the effects of all other Xyz Monsters currently on the field. You can target 1 other face-up Xyz Monster on the field; until the End Phase, this card's name becomes that monster's original name, also replace this effect with that monster's original effects. You can only use this effect of "Number 69: Heraldry Crest" once per turn.