Electrum Bip39 Seed Storing entropy (including retaining a deck of cards in a certain shuffled purchase) is unreliable compared to storing a mnemonic. Instead of storing entropy, retail store the mnemonic produced from the entropy. Steganography may be valuable when storing the mnemonic. So It is really your choice to https://atozbookmark.com/story18410841/bip39-random-word-generator-everything-about-bip39-phrase