Mystical Space Typhoon

Quick-Play Spell Cards can be activated during a battle phase as well as during a Main Phase. If you set this card on the field you can also activate it during your opponent's turn like a Normal Trap Card. Although this card can destroy 1 card, it cannot negate the effect of the destroyed card, even if you chain the card. For example, if you set this card and activate it in your opponent’s turn against Raigeki, all your monsters are destroyed because the effect of Raigeki is not negated (US official Tournament Ruling).