The cards in each of the two decks are not too complex to master and they allow for different strategies without the need to make any of your move counts
10 Booster Packs, per box (200 total)
Ive basically given up on getting CGC to recognize the variants right now
Only you can answer this question, but if you are curious about giving grading a try, and are grading for value, the safest bet is to focus on the household names: for baseball, Mickey Mantle, Willie Mays, Hank Aaron, Jackie Robinson, Roberto Clemente, Sandy Koufax, and popular Hall of Famer rookie cards are a good place to start
Sometimes trading a few cards for a single rare card is worth the trade
Purphoros just says 20 creatures = game over, which token decks can easily achieve