A Basic, TAG TEAM, GX Pokemon Card of type Psychic with the title Mewtwo & Mew-GX and 270 HP of rarity Promo from the set SM Black Star Promos.  It has the attack Miraculous Duo-GX with the cost Psychic, Psychic, Colorless, the energy cost 3 and the damage of 200 with the description: If this Pokemon has at least 1 extra Energy attached to it (in addition to this attack's cost), heal all damage from all of your Pokemon. (You can't use more than 1 GX attack in a game.) It has the ability Perfection with the description: This Pokemon can use the attacks of any Pokemon-GX or Pokemon-EX on your Bench or in your discard pile. (You still need the necessary Energy to use each attack.) It has weakness against Psychic 2. 
Mewtwo & Mew-GX