Your search for "*public domain*" revealed the following:

Transmutation Font (Showcase)
[Outlaws of Thunder Junction: The Big Score]

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Sylvan Library (French) - "Bibliotheque sylvestre"
[Renaissance]

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Tidus's Brotherhood Sword - Sword of Truth and Justice
[Secret Lair Drop Series]

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Mountain (262)
[Dominaria]

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Milo Thatch - Getting His Hands Dirty (Enchanted) (230/204)
[Wilds Unknown]

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Rainbow Dark Dragon
[PTDN-EN003 Secret Rare]

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Goblin Charbelcher (Retro Schematic) (Serialized)
[The Brothers' War Retro Artifacts]

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ICE CREAM MAN TP VOL 01 RAINBOW SPRINKLES Used

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Jeska's Will (Japanese)
[Secrets of Strixhaven: Mystical Archive]

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Stone Rain
[Beta Edition]

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Underground Mortuary (Borderless)
[Murders at Karlov Manor]

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Beholder's Paralyzing Ray - Oubliette (Rainbow Foil)
[Secret Lair Drop Series]

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Nidoking (150/147)
[Aquapolis]

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Demona - Scourge of the Wyvern Clan (Enchanted) (227/204)
[Whispers in the Well]

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Wildgrowth Walker
[Ixalan]

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Scrubland
[Collectors' Edition]

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