Trading Card Game ever existed
A common play against a deck like Gardevoir is to use Double Gunner and Radiant Alakazam to weaken Manaphy, take the KO with Yoga Loop, then on the next turn, power up Rapid Strike Urshifu VMAX and KO two other Pokmon with G-Max Rapid Flow, for a huge game-ending turn
If you want a fair match collection-wise, try playing the Starter Deck Duels event, where only Starter Decks are available, meaning all players have access to the same decks and cards
While most strategies in the current meta focus on playing a slow early game to find resources and strike back in the late game, there are plenty of cards in the game that do not need to evolve, and these cards are often the focal point of some strategies
You only pay the cost once before copying the spell, so the same opponent benefits when the copy and the original resolve