Switcheroo - S/witch

While this card is on the field, once per turn, you can Normal Summon 1 additional monster to your opponent’s field. Your opponent cannot Tribute Level 1 Fairy monsters or face-down Defense Position monsters, nor target them with card effects. At the start of Main Phase 1: Flip all face-down Defense Position monsters on the field face-up. At the start of the End Phase: Change all Level 1 Fairy monsters on the field to face-down Defense Position.