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

Thalia and The Gitrog Monster Art Card
[March of the Machine Art Series]

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Universal Monsters Blood Of The Wolf Man #4 (Of 4) Cover A Leomacs & Pip Martin

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Obelisk the Tormentor
[BP02-EN125 Mosaic Rare]

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Thalia and The Gitrog Monster (Promo Pack)
[March of the Machine Promos]

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Peer into the Abyss (Extended Art)
[Core Set 2021]

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Thalia and The Gitrog Monster
[March of the Machine Prerelease Promos]

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Universal Monsters Phantom Of The Opera #3 (Of 4) Cover A Martin Simmonds

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EC Epitaphs From The Abyss #6 (Of 12) Cover A Lee Bermejo

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The Gitrog Monster
[Edge of Eternities Commander]

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Trial of Hell
[LOB-012 Common]

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EC Epitaphs From The Abyss #10 (Of 12) Cover A Bermejo

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Universal Monsters Blood Of The Wolf Man #2 (Of 4) Cover A Leomacs & Pip Martin

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Token: Jaden
[TKN5-EN012 Super Rare]

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Thalia and The Gitrog Monster Art Card (Gold-Stamped Signature)
[March of the Machine Art Series]

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Nethroi, Apex of Death - Biollante, Plant Beast Form (Godzilla Series)
[Ikoria: Lair of Behemoths]

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Bazoo the Soul-Eater
[BP02-EN012 Mosaic Rare]

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