Blockchain Bip39 Storing entropy (which include preserving a deck of cards in a specific shuffled purchase) is unreliable in comparison to storing a mnemonic. Rather than storing entropy, retail store the mnemonic produced with the entropy. Steganography could be beneficial when storing the mnemonic. You could see the full resource https://moodjhomedia.com/story2584784/ledger-nano-bip39-little-known-facts-about-seed-phrase-generator