RD/CP01-JP016 ロイヤルデモンズ・デスヴォイス Royal Demon’s Death Voice
Level 6 LIGHT Fiend-Type Effect Monster
ATK 1800
DEF 0
[Requirement] During the turn in which this card was Normal Summoned by tributing a monster (Level 5 or higher), you can send the top card of your Deck to the Graveyard.
[Effect] Choose 1 face-up monster(Level 8 or lower) on the opponent’s field and reduce its ATK and DEF until the end of this turn by 200 x [the Level of the chosen monster].

Source