Card Appearances:Number C1000: Numerounius
- In episode 140, Don Thousand uses this card during his Duel against Yuma Tsukumo and Nash. He Xyz Summons this card via "Numeron Chaos Ritual", which used "Numeron Network", "Number 1: Numeron Gate Ekam", "Number 2: Numeron Gate Dve", "Number 3: Numeron Gate Trini", and "Number 4: Numeron Gate Catvari" for the summon. This card then attacks "Chaos Number 101: Silent Honor DARK", but Nash activates "Tidal Advantage" to halve this card's ATK this turn and prevent "Silent Honor DARK" from being destroyed by battle this turn. At the end of the Battle Phase, this card's third effect destroys all monsters Yuma and Nash control and revives "Silent Honor DARK" under Don Thousand's control. When Yuma Xyz Summons "Number 39: Utopia" via "Re-Xyz", Don Thousand activates this card's final effect to detach an Overlay Unit, destroy "Utopia", and Special Summon "Chaos Number 39: Utopia Ray Victory" from Yuma's Extra Deck, ignoring the summoning conditions (as this card negates the effects of "C" monsters and prevents them from attacking). Later "Silent Honor ARK" (whose ATK was 5500 due to being equipped with "Utopia Ray Victory" and "ZS - Ouroboros Sage") attacks this card and Yuma activates the final effect of "ZS - Ouroboros Sage" to double the ATK of "Silent Honor ARK", but Don Thousand activates this card's fourth effect to destroy "Silent Honor DARK" and prevent this card's destruction. At the end of the Battle Phase, this card's third effect destroys all monsters Yuma and Nash control and revives "Silent Honor DARK", "Utopia Ray Victory", "Number 101: Silent Honor ARK", and "Utopia" under his control. Later this card attacks directly, but Yuma activates the second effect of "Number 100: Numeron Dragon" to Special Summon it from his Extra Deck. A replay occurs and this card attacks "Numeron Dragon", but the third effect of "Numeron Dragon" reduces this card's ATK to 0 and the battle ends in a stalemate. At the end of the Battle Phase, this card's third effect destroys "Numeron Dragon". Yuma then activates the fourth effect of "Number 100: Numeron Dragon" to destroy all monsters on the field and return all Spell and Trap Cards destroyed on the field this turn to their original position before destruction. Don Thousand then overlays this card with itself from the Graveyard in order to Xyz Summon "Chaos imaginary Number 1000: Numeronius Numeronia" (which Don Thousand could do due to the latter monster's second effect). In the next episode, Don Thousand detaches this card in order to activate the final effect of "Numeronius Numeronia". 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.
