Bip39 Ozon Storing entropy (which include preserving a deck of cards in a specific shuffled buy) is unreliable when compared to storing a mnemonic. As an alternative to storing entropy, retailer the mnemonic created within the entropy. Steganography could possibly be helpful when storing the mnemonic. Since BIP39 mnemonic codes https://topsocialplan.com/story4017199/bip39-add-private-key-bip39-can-be-fun-for-anyone