Mewtwo (10/102) [Base Set Unlimited]Set: Base Set Unlimited Type: Psychic Rarity: Holo Rare Retreat cost: Colorless,Colorless,Colorless

Set: EX: Emerald Type: Water Rarity: Holo Rare Retreat cost: Colorless

Set: Promo Finish: Cold Foil Type: Hero Rarity: Promo Class: Ranger Elemental Life: 40 Intellect: 4 Lexi

Set: Base Set Shadowless Unlimited Type: Water Rarity: Common Retreat cost: Colorless

it gains +3 [Power]

Set: Black & White: Legendary Treasures Type: Grass Rarity: Ultra Rare Retreat cost: Colorless

Set: Platinum: Rising Rivals Type: Fire Rarity: Rare Retreat cost: Colorless

Set: Diamond & Pearl: Black Star Promos Type: Trainer Rarity: Promo

Set: Base Set Shadowless Unlimited Type: Psychic Rarity: Common Retreat cost: 0

Set: HeartGold & SoulSilver: Unleashed Type: Fighting Rarity: Holo Rare Retreat cost: Colorless

while Serperior

Set: Skyridge Type: Fire Rarity: Common Retreat cost: Colorless

Set: Platinum: Rising Rivals Type: Colorless Rarity: Holo Rare Retreat cost: 0