Some notable examples that feel especially relevant to the current Pokemon TCG Pocket meta include Tool cards that decrease the retreat cost of the Pokemon it is attached to, such as: Air Balloon, which decreases the Pokemons retreat cost by two Energy
In other words, you can put 5 counters on The Ur-Dragon, but you don't win the game that way
For context, after a long testing session of preparing for Standard events, Ill jam a bunch of Expanded games for fun
Erika's Invitation #203 Ebay: $60 TCGPlayer: $84 Cardmarket: 43 Next on the list is Erika's Invitation (203/165)
If you're not familiar with Sagas, here's how they work
This set is noticeable since it also introduced Darkness and Metal type Pokemon to the game, as well as Baby Pokemon and Pokemon Tools, which would become an essential part of the game moving forward