Pokmon TCG Pocket uses mana generation, similar to games such as Magic: The Gathering and Hearthstone, at its core, with players able to attach one energy per turn to slowly but surely build up to more and more powerful attacks
The owner of this card can send it to the graveyard as a quick effect in order to prevent their opponent from adding cards from their deck to the hand for the rest of the turn
Attend card shows or connect with online collector groups to trade for specific chase cards you want
being unlockable, trample, etc.) means that its harder to complete the swing itself
A lot of Psychic-type Pokemon like Mewtwo, Mega Gardevoir, Solgaleo , and more stay relevant to the Pokemon Go meta due to their s heer power, versatile move pools , and good type combinations
But it is just so expensive