Play Mysterious Fossil as if it were a Basic Pokémon. While in play, Mysterious Fossil counts as a Pokemon (instead of a Trainer card). Mysterious Fossil can't be Asleep, Confused, Paralyzed, or Poisoned. If Mysterious Fossil is Knocked Out, it doesn't count as a Knocked Out Pokémon. (Discard anyway.) At any time during your turn before your attack, you may discard Mysterious Fossil from play.