How many ways are there to gaff a deck of cards? A whole frickin' lot.
Suppose we just look at decks of 'just cards', e.g. no rising cards units with thread, weights, or magnets, no dwarves or lasers. In addition, no specially printed cards: no double facers/backers, double ended cards, etc.
So, decks of regular cards that have (or have not) been cut/shaved in one way or another, ones that use roughing spray or not, mixed with regular cards or not.
Make sense? Please help me out here.