Cannot be Normal Summoned/Set. Must be Special Summoned by a card effect, and cannot be Special Summoned by other ways. When your opponent Normal or Special Summons a monster(s) while you control no monsters (except during the Damage Step): You can Special Summon both this card from your hand and 1 "PSY-Frame Driver" from your hand, Deck, or Graveyard, and if you do, add 1 "PSY-Frame" card from your Deck to your hand, except "PSY-Frame Gear Alpha". During the End Phase, banish the face-up monsters Special Summoned by this effect.