I probably won't play Lv. Xs they're kind of stupid. They have the same name, so they'll take place of a normal copy, and they're technically Stage 3s. Imagine having a stable deck like that. Say I wanted to play a Lv. X: I would have to play 4 Basic, 3 Stage 1, 2 Stage 2, and 2 Lv. X, or something like that. I know my explanation is kind of hard to understand, but it just doesn't work.