16 cards where the text includes “cipher”

Arcane Heist (Outlaws of Thunder Junction Commander #13)
Call of the Nightwing (Gatecrash #149)
Hands of Binding (Gatecrash #37)
Hidden Strings (Dragon's Maze #12)
Last Thoughts (Gatecrash #40)
Mental Vapors (Gatecrash #72)
Midnight Recovery (Gatecrash #73)
Paranoid Delusions (Gatecrash #186)
Shadow Slice (Gatecrash #77)
Soulcipher Board // Cipherbound Spirit (Innistrad: Crimson Vow #79)
Soulcipher Board // Cipherbound Spirit (Innistrad: Crimson Vow #79)
Stolen Identity (New Capenna Commander #233)
Trait Doctoring (Dragon's Maze #18)
Undercity Plague (Gatecrash #83)
Voidwalk (Gatecrash #55)
Whispering Madness (Commander 2016 #229)
Writ of Return (New Capenna Commander #42)

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