Serpent of Yawning Depths (Rainbow Foil) [Secret Lair Drop Series] Water[-20] Set Name: Mercurial Heart Release

Set Name: Mercurial Heart Release Date: 2024-05-17 Rarity: Ultra Rare Card Name: Mercurial Heart Card Number: 012 Flavor Text: The first heartbeat began the downfall of Azoth

then you discard the chosen card

you can Normal Summon it to have it be treated as an Effect Monster with this effect: •Once per turn

Set: Ghosts From the Past: The 2nd Haunting Card type: Normal Monster Rarity: Ghost Rare Attack: 3000 Defense: 2500 This legendary dragon is a powerful engine of destruction

Serpent of Yawning Depths (Rainbow Foil) [Secret Lair Drop Series] Water[-20] Set Name: Mercurial Heart ReleaseSet: Secret Lair Drop Series Type: Enchantment Creature Serpent Rarity: Rare Cost: {4}{U}{U} Krakens, Leviathans, Octopuses, and Serpents you control can't be blocked except by Krakens, Leviathans, Octopuses, and Serpents. Fear not heightstrue monsters lurk in the depths.