The slightly simplified story is that cards in the Core Set (Unlimited through 9th Edition ) all have white borders, while cards from one of Magic's many expansion sets will be black bordered
This mitigates nearly all risks when attacking as long as Iroas is on the battlefield
I see no anti token, treasure or land token aspect
Instead of giving the player a starter Pokmon, Mason lets the player choose between one of three starter decks, themed around Charmander, Squirtle, or Bulbasaur
If you opened a borderless version, you got your hands on one of the most valuable cards in the set
For each heads, attach a Basic Energy card from your discard pile to your Benched Pokemon in any way you like