Mewtwo (12) [Wizards of the Coast: Black Star Promos] U-ARC044 this card's name becomes that

this card's name becomes that monster's original name

Set: Shadow of Infinity Card type: Effect Monster Rarity: Ultimate Rare Attack: 100 Defense: 100 If this card is in your Graveyard during your Standby Phase and there are no Spell or Trap Cards on your side of the field

destroy all face-up monsters on your opponent's side of the field with an ATK equal to or less than the ATK of the sent monster

Set: Legendary Collection 4: Joey's World Card type: Normal Spell Rarity: Ultra Rare Destroy all Spell and Trap Cards on the field

or card effects

Mewtwo (12) [Wizards of the Coast: Black Star Promos] U-ARC044 this card's name becomes thatSet: Wizards of the Coast: Black Star Promos Type: Psychic Rarity: Black Star Promo Retreat cost: Colorless,Colorless