Pavel's Puzzles

Here are forty-eight simple-looking cards and no instructions, in a puzzle with no name! Can you master the letter patterns and discover this puzzle's secret identity?

Be prepared for a lot of word-nerdery as you work your way toward unveiling the name of this challenging puzzle. The clues you need may be a bit subtle, but they're present nonetheless, so keep your eyes peeled!

(Note: Although color does play a role in this puzzle, provision has been made for solvers who may be color-blind.)