Advanced format ruling
Dupe Frog
Card effect (current official text)This card's name becomes "Des Frog" while it is on the field. Monsters your opponent controls cannot target monsters for attacks, except this one. When this card is sent from the field to the Graveyard: You can add 1 "Frog" monster from your Deck or Graveyard to your hand, except "Dupe Frog".
Current rulings for this card are maintained by Konami.
Rulings data courtesy of Format Library — formatlibrary.com. Spotted an inaccuracy? Flag it in the Advanced forum — sourced change requests get reviewed.