Switcheroo Den

Flip monster effects on your side of the field cannot be activated. Once per turn: You can Special Summon 1 Level 1 Fairy monster from your hand to your opponent’s field in face-down Defense Position. If a Flip effect is activated on your opponent’s side of the field: You can draw 1 card, and if you do, inflict 300 damage to your opponent. You can only use each effect of this card once per turn.