Mewtwo
How it was given out: Pokémon Happy Adventure Rally 2002.
Japanese promo, released 2002.
One of 278 promos from 1999 to 2003 listed on this site.
Once during your turn (before your attack), if Mewtwo is your Active Pokémon and if you have any Basic Pokémon named Entei on your Bench, you may flip a coin. If heads, put 1 basic Energy card from your discard pile into your hand, if any. This power can't be used if Mewtwo is affected by a Special Condition.
Illustrator: Midori Harada
This card was one of six available through the Pokémon Happy Adventure Rally 2002, which ran on the JR East Yamanote Line from August 3 to August 18, 2002. Mewtwo could be obtained at the booth present at Shinagawa Station.
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Card notes adapted from Bulbapedia (CC BY-NC-SA).
Unofficial fan reference. Pokémon and card artwork © Nintendo, Creatures, GAME FREAK and The Pokémon Company.