Since a monster would be destroyed, the opponent responds by activating "Destruction Jammer", a Counter Trap which allows them to negate the activation of an effect which would destroy a monster on their field, and also destroys the card which would do so, by discarding a card from their hand
But it's important to remember that even experts can make mistakes
You do what the spell says, and then put the card into your graveyard
The Ancient One, for example, can only attack or block if you have eight or more permanent cards in your graveyard
Miscellaneous Game Mechanics Pokmon Championship Series In Other Games Virtual Console Special Edition Consoles Pokmon 3DS Themes Smartphone & Tablet Apps Virtual Pets amiibo Nintendo Switch Online & Icons Board Game Pokmon Goita Arcade Pokmon FRIENDA Manga General Information MangaDex Character BIOs Detailed BIOs Chapter Guides Volume Guides RBG Series Yellow Series GSC Series RS Series FRLG Series Emerald Series DP Series Platinum Series HGSS Series BW Series B2W2 Series XY Series ORAS Series SM Series Movies Anime The Origin of Mewtwo Mewtwo Strikes Back The Power of One Spell Of The Unown Mewtwo Returns Celebi: Voice of the Forest Pokmon Heroes Jirachi - Wish Maker Destiny Deoxys
It's seeing play a lot of play in the Domain Aggro decks