Stormblood said:
You can also just blot out any enemy stuff with a permanent black marker, also visualising it dissolved in your head. Then perform a banishment of negative energies, and clean the energies of the deck.
I would recommend replacing the enemy stuff with Runes, based on the number of Major Arcana or the number of the 4 suits. A good example of this is the Wheel of Fortune, which is #10, so Runes like Fehu, Uruz, Raidho and Nauthiz (10 is divisible by 1, 2, 5 and itself, hence those specific Runes) could replace the Hebrew letters. And fittingly, these are 4 Runes, which you can add 4 other Runes or even the 8 pointed star of Astarte, and place those 4 Runes and the 4 elements alongside those Runes.