I'm a bit confused, first you say you are using the translations from the online game, then you are asking if a French translations already exists?
All the mentioned cards are in the game, but since they are not Kingdom cards, you cannot 'see' them in the kingdom builder or the familiar cards. You need for example to play a game with Necromancer to be able to play with (and read, of course) the Zombie cards. Same for the Heirlooms cards.
I've appended screenshots of all the cards, in this and the next reply. I hope this helps! If you have more questions, feel free to ask: