~X~ said:
Is it a "three strikes and you're out", thing?
LOL. That's kind of it!
When we're discussing the Marseille for instance, I think there are a few things which are essential and if they're not there, most Marseillists will say it can't be a true Marseille deck. Here are a few examples amongst many:
Take the Bateleur: He needs to have a leminscate, his table needs to have three legs (not four).
The Emperor: It is preferable that his legs form a cross. (Same with the Hanged Man.)
The Lovers card: Always a "cupid", one man and two women.
The Moon: Two dogs, a lobster/crab/crayfish and two towers on either side (the two towers are not the same.)
The Fool: If he is numbered 0, he's out. Not even three strikes here - one strike and you won't know what's hit you.
The World: An angel, an eagle, a lion and a bull in the four corners.
XIII (if this card is given a name, watch out). Chopped off heads are pretty important here.
etc. etc.
There are some basic stuff without which a Marseille deck can't be a Marseille deck. Because it wouldn't make sense anymore.
Also, turn the way they're facing and you're lost. Justice looks straight ahead, the Hermit turns to your left side (his right).....