If a Quick-Play Spell Card is activated (except during the Damage Step): You can Special Summon this card from your hand.

When your opponent activates a monster effect and you have "Mystical Space Typhoon" in your GY (Quick Effect): You can negate that effect, then if you have 2 or more "Mystical Space Typhoon" in your GY, you can destroy that monster.

If "Mystical Space Typhoon" is activated while this card is in your GY: You can Special Summon this card.