Your search for "*monster of the abyss*" revealed the following:

Mark Spears Monsters The Monster & The Wolf #3 Cover C Mark Spears Lord Of The Undead Variant

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Garlandolf, King of Destruction
[ABPF-EN039 Ultimate Rare]

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Eye of Ojer Taq // Apex Observatory (Extended Art)
[The Lost Caverns of Ixalan Commander]

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Chevill, Bane of Monsters (Promo Pack)
[Ikoria: Lair of Behemoths Promos]

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Mermail Abyssalacia
[DANE-EN094 Ultra Rare]

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Abhorrent Oculus (Borderless)
[Duskmourn: House of Horror]

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Skull Archfiend of Lightning
[BP01-EN006 Rare]

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Nimble Beaver
[EGO1-EN018 Common]

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Assault Wyvern
[MVP1-ENG03 Gold Rare]

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Sea-Dasher Octopus
[Ikoria: Lair of Behemoths]

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Aclazotz, Deepest Betrayal Art Card
[The Lost Caverns of Ixalan Art Series]

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Aclazotz, Deepest Betrayal Art Card (Gold-Stamped Signature)
[The Lost Caverns of Ixalan Art Series]

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Exodia the Forbidden One
[LOB-124 Ultra Rare]

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King of the Skull Servants
[TLM-EN032 Common]

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Aclazotz, Deepest Betrayal // Temple of the Dead
[The Lost Caverns of Ixalan Prerelease Cards]

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Assault Wyvern
[MVP1-ENS03 Secret Rare]

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