There's no right or wrong answer, but I always suggest that new collectors start with a more affordable box
Sign ups for a Pokemon tournament begin at 10:00 in a dedicated tourney room which is $40 and also gains you early access to the show floor, a half case of Phantasmal Flames is up for grabs plus every entry gets a tournament pack
Other than generic cards, As for the Main Deck, everything is SR or lower
Even if you play her for 5 mana and simply use the first active ability, it's still worthwhile as the solid planeswalker and a 6/6 creature token in a single turn are both great
This is our first example of a card that was banned because of the nature of non-rotating formats to increasingly push the power level of synergistic cards
For now, though, Shock will feel a bit underwhelming to many of you