We wont dive into the nitty-gritty of each of these, and if youd like, you can read up on their finer details in a dedicated Pokmon card guide
Green has a huge stable of artifact and enchantment removal, so having a spell with additional functionality is quite good
Reorganize when your system no longer serves your needs, typically after major collection additions or when trading frequently
Rivers first ability is Meet in Reverse, which lets you draw cards from the bottom of your library instead of the top - which is funny, if nothing else
On average, there's only one special expansion per card series with Shiny Pokmon cards, which makes them feel like much more of an event even though they use generic-looking card art
cards, and 3 Basic Rule index cards, all ideal for your first game