Descripción
If your opponent controls a monster(s) Special Summoned from the Extra Deck and you do not: Choose 4 «Number» Xyz Monsters from your Extra Deck with different Ranks, plus a 5th «Number» Xyz Monster whose «Number» value in its name equals the combined «Number» values of the 4 other monsters, Special Summon that 5th «Number» monster (this is treated as an Xyz Summon), and attach the 4 chosen monsters to it as material, but you cannot Special Summon monsters, except «Number» Xyz Monsters, while you control that face-up monster.