Card Appearances:Number iC1000: Numerounius Numerounia
- In episode 140, Don Thousand uses this card during his Duel against Yuma Tsukumo and Nash. After "Chaos Number 1000: Numeronius" is destroyed by the fourth effect of "Number 100: Numeron Dragon", Don Thousand activates this card's second effect to Xyz Summon this card from his Extra Deck and attach "Numeronius" as a Overlay Unit to this card. Don Thousand explains that due to this card's fourth and fifth effects, his opponents must attack this card or they lose during the End Phase of their turn. In the next episode, "Number 39: Utopia" (whose ATK was 102,000 due to "Utopia Rising" granting "Utopia" the effects of "Numeron Dragon" and "Number 73: Abyss Splash" that involve detaching Overlay Units) attacks this card, but Don Thousand activates this card's final effect to negate the attack and increase his Life Points by the ATK of "Utopia". Yuma then activates "Double or Nothing!" to double the ATK of "Utopia" and allow it to attack again. "Utopia" then attacks and destroys this card, winning Yuma and Nash the Duel. After the Duel, Nash absorbs this card along with every "Number" in Don Thousand's possession after Don Thousand is defeated and he willingly allows his power to be absorbed by Nash.