Ruling About Shuffling

[supersonic711]

If I use Professor Oak's new Thoery or Copycat with 0 cards in my hand, do I have to shuffle the deck or do I just draw since there are no cards in my hand to shuffle? Minor technicality but i'd like to know the answer

 

[King Arceus]

You still have to shuffle the deck. You always have a hand even if it is zero cards.~Mark