Tamtam the Melodious Diva (CORE-EN009) - Clash of Rebellions Unlimited

If this card is Special Summoned while you control a "Melodious" monster: You can add 1 "Polymerization" from your Deck or Graveyard to your hand. If this card is sent to the Graveyard as a Fusion Material for a Fusion Summon: You can target 1 "Melodious" monster you control; it loses 500 ATK, and if it does, inflict 500 damage to your opponent.