Number 8: Heraldic King Genom-Heritage

2 Level 4 "Heraldic Beast" monsters Once per turn: You can target 1 face-up Xyz Monster your opponent controls; this card's name and original ATK become that monster's original name and current ATK, also replace this effect with that monster's original effects, then that monster's ATK becomes 0, also its effects are negated. This effect applies until the End Phase.