Pendulum Swing

You can only use this Skill's second effect once per Duel.
1: At the beginning of the Duel, add Pendulum Zones to your field.
2: Reveal up to 2 Pendulum Monsters in your hand, then add 1 Pendulum Monster from your Deck to your hand. If you do not control a face-up Pendulum Monster and you only revealed 1 Pendulum Monster in your hand to activate this effect, shuffle 1 card from your hand into the Deck.