Once during your turn (before your attack), you may put Marill from your hand onto Azurill (this counts as evolving Azurill) and remove all damage counters from Azurill.

Choose a basic Energy card in your hand and show it to your opponent. Then, search your deck for a Basic Pokémon or Evolution card of that Energy type, show it to your opponent, and put it into your hand. Shuffle your deck afterward.