You may play a Pokémon card that evolves from Mysterious Fossil on top of Buried Fossil. (This counts as evolving Buried Fossil.) Buried Fossil can't be affected by Special Conditions.
Once during your turn (before your attack), if you have a basic Energy card in your hand, you may search your deck for an Omanyte or Kabuto card, show it to your opponent, and put it into your hand. Then, put a basic Energy card from your hand into your deck. Shuffle your deck afterward.