Number S0: Utopic ZEXAL
Rank 0 LIGHT Warrior-Type Xyz Effect Monster
ATK ?
DEF ?
Materials: 3 “Number” monsters with the same Rank
(This card’s original Rank is always treated as 1.)
You can also Xyz Summon this card by discard 1 “Rank-Up-Magic” Normal Spell Card, then using a “Utopia” Monster you control as the Xyz Materials. (Xyz Materials attached to that monster also become Xyz Materials on this card.) This card’s Xyz Summon cannot be negated. When Xyz Summoned, your opponent’s cards and effects cannot be activated. This card gains 1000 ATK and DEF for each Xyz Material attached to it. Once per turn, during your opponent’s turn: You can detach 1 Xyz Material fom this card; your opponent’s cards and effects cannot be activated this turn (this is a Quick Effect).

Source: Shonen Jump from Viz