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

Plains (289)
[Beta Edition]

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Swords to Plowshares (Borderless) (Magazine Insert)
[Media Promos]

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Containment Priest (Invocation)
[Amonkhet Invocations]

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Cyberman Patrol
[Doctor Who]

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Scion of Draco
[Modern Horizons 2]

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Snow-Covered Plains (1473) (Rainbow Foil)
[Secret Lair Drop Series]

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Doubling Season (Showcase) (Fracture Foil)
[Foundations]

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Silent Swordsman Zero
[LEDE-EN002 Quarter Century Secret Rare]

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Scrubland
[Unlimited Edition]

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Vault of Whispers (Borderless)
[Secret Lair Drop Series]

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Wonder Woman #4 Cover A Daniel Sampere

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Maskwood Nexus (Double Rainbow Foil)
[Secret Lair Drop Series]

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Foolish Burial Goods
[RATE-EN065 Secret Rare]

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Lich
[Collectors' Edition]

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Snow-Covered Forest (1477) (Rainbow Foil)
[Secret Lair Drop Series]

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Silence
[Magic 2014]

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