This card cannot be Normal Summoned or Set. This card cannot be Special Summoned except by Tributing 3 monsters you control. Once per turn, select your opponent's and equip it to this card. (You can only equip 1 monster at a time to this card.) This card gains ATK equal to half of the ATK of the equipped monster. While this card is face-up on the field, negate all the effects of face-up Effect Monsters your opponent controls.