The first number and letter are the simulator version
If your opponent has a really good hand and you don't want them to have too many options, you can play Judge to force them to shuffle their hand back into their deck and draw four new cards
(I always imagine it like being what youd get if chess had certain edge cases where rooks could fly, bishops could teleport, or for a second, pawns were driving tanks.) Since the game is built around several thousand collectible cards, and almost every card has some additional unique ability to it one way or the other, it creates an endlessly manipulable, constantly surprising experience
They are both really consistent decks that are able to establish good fields going first (Zoodiac Drancia and Crystal Wing are cards you will get used to seeing) as well as play through backrows going second
Serialized versions of Mox Jasper can appear in Collector Boosters of any language, but the card will always be in English
These are the keyword actions that make this game what it is