صحوة الأرقام

If only your opponent controls a monster Special Summoned from the Extra Deck: Choose 4 "Number" Xyz Monsters with different Ranks in your Extra Deck and Special Summon 1 "Number" Xyz Monster from your Extra Deck with a number in its name equal to the total of the numbers in the names of all 4 chosen monsters, and if you do, attach all the chosen monsters to it as material, but you cannot Special Summon monsters, except "Number" Xyz Monsters, while you control that face-up Special Summoned monster. (This is treated as an Xyz Summon.)