That opponent is chosen as part of that additional cost
Also, if you happen to be in the Seattle or Portland areas, you could just go into the shop and pick it up directly
Legendary Creature - Berserker Dwarf Spark Double You may have this creature enter as a copy of a creature or planeswalker you control, except it enters with an additional +1/+1 counter on it if it's a creature, it enters with an additional loyalty counter on it if it's a planeswalker, and it isn't legendary
Pokemon fans as they celebrate the franchises 30th anniversary all year round, are already opening packs, creating their best TCG Pocket decks, and battling it out
Because of its scarcity, however, the card is actually still very expensive, sitting at around $50 on average