Croconaw (Mysterious Treasures 44/123)

Evolves from Totodile

Abilities

Once during your turn, when you play Croconaw from your hand to evolve 1 of your Pokémon, you may look at the top 5 cards of your deck. Choose all Energy cards you find there, show them to your opponent, and put them into your hand. Put the other cards back on top of your deck. Shuffle your deck afterward.

Attacks

Once it bites down, it won't let go until it loses its fangs. New fangs quickly grow into place.