Target 1 monster you control; destroy it, then send 2 cards from the top of your opponent's Deck to the GY.
Rulings
Individual Card FAQs
If you cannot destroy a monster with this effect, you cannot send cards from your opponent's Deck to the Graveyard.
If you destroy "Peten the Dark Clown", you miss the timing on its activation because it was not the last effect to resolve, so you cannot Special Summon another "Peten the Dark Clown".
Trap|
Normal