17 cards where the illustration contains “blanket”

Claim the Firstborn (Throne of Eldraine #118)
Cloistered Youth // Unholy Fiend (Innistrad #8)
Cloistered Youth // Unholy Fiend (Innistrad #8)
Counterintelligence (Portal Three Kingdoms #41)
Crib Swap (Lorwyn #11)
Dark Ritual (Urza's Saga #127)
Discordant Spirit (Mirage #261)
Elderfang Ritualist (Kaldheim #385)
Eruth, Tormented Prophet (Innistrad: Crimson Vow #237)
Expedition Map (The Lost Caverns of Ixalan Commander #112)
Gaseous Form (Fifth Edition #90)
Jhessian Balmgiver (Conflux #112)
Rebirth (Legends #200)
Remedy (Visions #17)
Silent Assassin (Mercadian Masques #160)
Vampiric Feast (Portal #114)
Vile Consumption (Invasion #285)
Village Cannibals (Innistrad #125)

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