Rattata (TR #66)

Pokemon Power • Trickery

Once during your turn (before your attack), you may switch 1 of your Prizes with the top card of your deck. This power can't be used if Rattata is Asleep, Confused, or Paralyzed.

Flip a coin. If heads, this attack does 10 damage plus 10 more damage; if tails, this attack does 10 damage.