Sky Striker Maneuver - Jamming Waves! (MP19-EN262) - 2019 Gold Sarcophagus Tin Mega Pack 1st Edition

If you control no monsters in your Main Monster Zones: Target 1 Set Spell/Trap on the field; destroy it, then, if you have 3 or more Spells in your GY, you can destroy 1 monster on the field.