Up to 3 Level 12 Synchro Monsters (min. 2) Must be Xyz summoned, and cannot be Special Summoned by other ways. This card's summon cannot be negated. When this card is summoned: Your opponent cannot activate cards or effects. Up to twice per turn, during either player's turn: When your opponent would summon a monster OR activate a Spell/Trap card OR attack, you can negate the summon of that monster, activation of that Spell/Trap card, or that attack, AND you can also detach 1 Xyz material to inflict 36000 damage to your opponent. Depending on the number of Xyz materials attached to this card, you can activate the following effects. ● 3: Shuffle up to 4 cards in both player's fields, hands, or graves into the deck. ● 2: Banish up to 4 cards in both player's hands, fields, or graves and inflict 1300 damage to your opponent for each card returned. ●: 1 Send up to 4 cards on the field or in the hand to the graveyard. ● 0: Destroy 1 card on the field. During each player's Standby Phase: Detach 1 Xyz material from this card and take 1750 damage, or destroy this card. You can only activate each effect of "Supreme Guardian Of Time" once per turn.