CYAC-EN000 – Numbers Eveil – Ultra Rare – 1st Edition

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.