Each Beginner Box contains the following: 10 Themed Jumpstart half-decks Two (2) of these Jumpstart half-decks are tutorial decks and are designed to be played against each other
These factors do still apply to modern Pokmon cards, just on a smaller scale (look up the price of an Umbreon VMAX, for example)
Some people never send cards unless they think they are 10s only
Stalwart Unity: Howling Mine, Prismatic Geoscope, Venser's Journal, Keening Stone, Commander's Sphere, Sol Ring
Contents: 4 Ready-to-Play Commander Decks
Then you can spend any mana for any color's needed for your activated abilities of your dorks, so your Sisay will now be any five mana you have or Rin and Seri don't need Naya to tap